Java Code Examples for org.lwjgl.system.MemoryUtil#memAllocFloat()

The following examples show how to use org.lwjgl.system.MemoryUtil#memAllocFloat() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: InstancedMesh.java    From lwjglbook with Apache License 2.0 5 votes vote down vote up 
public InstancedMesh(float[] positions, float[] textCoords, float[] normals, int[] indices, int numInstances) {
    super(positions, textCoords, normals, indices, Mesh.createEmptyIntArray(Mesh.MAX_WEIGHTS * positions.length / 3, 0), Mesh.createEmptyFloatArray(Mesh.MAX_WEIGHTS * positions.length / 3, 0));

    this.numInstances = numInstances;

    glBindVertexArray(vaoId);

    instanceDataVBO = glGenBuffers();
    vboIdList.add(instanceDataVBO);
    instanceDataBuffer = MemoryUtil.memAllocFloat(numInstances * InstancedMesh.INSTANCE_SIZE_FLOATS);
    glBindBuffer(GL_ARRAY_BUFFER, instanceDataVBO);
    int start = 5;
    int strideStart = 0;
    // Model matrix
    for (int i = 0; i < 4; i++) {
        glVertexAttribPointer(start, 4, GL_FLOAT, false, InstancedMesh.INSTANCE_SIZE_BYTES, strideStart);
        glVertexAttribDivisor(start, 1);
        glEnableVertexAttribArray(start);
        start++;
        strideStart += InstancedMesh.VECTOR4F_SIZE_BYTES;
    }

    // Texture offsets
    glVertexAttribPointer(start, 2, GL_FLOAT, false, InstancedMesh.INSTANCE_SIZE_BYTES, strideStart);
    glVertexAttribDivisor(start, 1);
    glEnableVertexAttribArray(start);
    strideStart += InstancedMesh.FLOAT_SIZE_BYTES * 2;
    start++;

    // Selected or Scaling (for particles)
    glVertexAttribPointer(start, 1, GL_FLOAT, false, InstancedMesh.INSTANCE_SIZE_BYTES, strideStart);
    glVertexAttribDivisor(start, 1);
    glEnableVertexAttribArray(start);
    start++;

    glBindBuffer(GL_ARRAY_BUFFER, 0);
    glBindVertexArray(0);
}
Example 2
Source File: Mesh.java    From lwjglbook with Apache License 2.0 4 votes vote down vote up 
public Mesh(float[] positions, float[] textCoords, float[] normals, int[] indices, int[] jointIndices, float[] weights) {
    FloatBuffer posBuffer = null;
    FloatBuffer textCoordsBuffer = null;
    FloatBuffer vecNormalsBuffer = null;
    FloatBuffer weightsBuffer = null;
    IntBuffer jointIndicesBuffer = null;
    IntBuffer indicesBuffer = null;
    try {
        vertexCount = indices.length;
        vboIdList = new ArrayList<>();

        vaoId = glGenVertexArrays();
        glBindVertexArray(vaoId);

        // Position VBO
        int vboId = glGenBuffers();
        vboIdList.add(vboId);
        posBuffer = MemoryUtil.memAllocFloat(positions.length);
        posBuffer.put(positions).flip();
        glBindBuffer(GL_ARRAY_BUFFER, vboId);
        glBufferData(GL_ARRAY_BUFFER, posBuffer, GL_STATIC_DRAW);
        glEnableVertexAttribArray(0);
        glVertexAttribPointer(0, 3, GL_FLOAT, false, 0, 0);

        // Texture coordinates VBO
        vboId = glGenBuffers();
        vboIdList.add(vboId);
        textCoordsBuffer = MemoryUtil.memAllocFloat(textCoords.length);
        textCoordsBuffer.put(textCoords).flip();
        glBindBuffer(GL_ARRAY_BUFFER, vboId);
        glBufferData(GL_ARRAY_BUFFER, textCoordsBuffer, GL_STATIC_DRAW);
        glEnableVertexAttribArray(1);
        glVertexAttribPointer(1, 2, GL_FLOAT, false, 0, 0);

        // Vertex normals VBO
        vboId = glGenBuffers();
        vboIdList.add(vboId);
        vecNormalsBuffer = MemoryUtil.memAllocFloat(normals.length);
        if (vecNormalsBuffer.capacity() > 0) {
            vecNormalsBuffer.put(normals).flip();
        } else {
            // Create empty structure
            vecNormalsBuffer = MemoryUtil.memAllocFloat(positions.length);
        }
        glBindBuffer(GL_ARRAY_BUFFER, vboId);
        glBufferData(GL_ARRAY_BUFFER, vecNormalsBuffer, GL_STATIC_DRAW);
        glEnableVertexAttribArray(2);
        glVertexAttribPointer(2, 3, GL_FLOAT, false, 0, 0);

        // Weights
        vboId = glGenBuffers();
        vboIdList.add(vboId);
        weightsBuffer = MemoryUtil.memAllocFloat(weights.length);
        weightsBuffer.put(weights).flip();
        glBindBuffer(GL_ARRAY_BUFFER, vboId);
        glBufferData(GL_ARRAY_BUFFER, weightsBuffer, GL_STATIC_DRAW);
        glEnableVertexAttribArray(3);
        glVertexAttribPointer(3, 4, GL_FLOAT, false, 0, 0);

        // Joint indices
        vboId = glGenBuffers();
        vboIdList.add(vboId);
        jointIndicesBuffer = MemoryUtil.memAllocInt(jointIndices.length);
        jointIndicesBuffer.put(jointIndices).flip();
        glBindBuffer(GL_ARRAY_BUFFER, vboId);
        glBufferData(GL_ARRAY_BUFFER, jointIndicesBuffer, GL_STATIC_DRAW);
        glEnableVertexAttribArray(4);
        glVertexAttribPointer(4, 4, GL_FLOAT, false, 0, 0);

        // Index VBO
        vboId = glGenBuffers();
        vboIdList.add(vboId);
        indicesBuffer = MemoryUtil.memAllocInt(indices.length);
        indicesBuffer.put(indices).flip();
        glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, vboId);
        glBufferData(GL_ELEMENT_ARRAY_BUFFER, indicesBuffer, GL_STATIC_DRAW);

        glBindBuffer(GL_ARRAY_BUFFER, 0);
        glBindVertexArray(0);
    } finally {
        if (posBuffer != null) {
            MemoryUtil.memFree(posBuffer);
        }
        if (textCoordsBuffer != null) {
            MemoryUtil.memFree(textCoordsBuffer);
        }
        if (vecNormalsBuffer != null) {
            MemoryUtil.memFree(vecNormalsBuffer);
        }
        if (weightsBuffer != null) {
            MemoryUtil.memFree(weightsBuffer);
        }
        if (jointIndicesBuffer != null) {
            MemoryUtil.memFree(jointIndicesBuffer);
        }
        if (indicesBuffer != null) {
            MemoryUtil.memFree(indicesBuffer);
        }
    }
}
Example 3
Source File: Mesh.java    From lwjglbook with Apache License 2.0 4 votes vote down vote up 
public Mesh(float[] positions, float[] textCoords, float[] normals, int[] indices, int[] jointIndices, float[] weights) {
    FloatBuffer posBuffer = null;
    FloatBuffer textCoordsBuffer = null;
    FloatBuffer vecNormalsBuffer = null;
    FloatBuffer weightsBuffer = null;
    IntBuffer jointIndicesBuffer = null;
    IntBuffer indicesBuffer = null;
    try {
        vertexCount = indices.length;
        vboIdList = new ArrayList<>();

        vaoId = glGenVertexArrays();
        glBindVertexArray(vaoId);

        // Position VBO
        int vboId = glGenBuffers();
        vboIdList.add(vboId);
        posBuffer = MemoryUtil.memAllocFloat(positions.length);
        posBuffer.put(positions).flip();
        glBindBuffer(GL_ARRAY_BUFFER, vboId);
        glBufferData(GL_ARRAY_BUFFER, posBuffer, GL_STATIC_DRAW);
        glEnableVertexAttribArray(0);
        glVertexAttribPointer(0, 3, GL_FLOAT, false, 0, 0);

        // Texture coordinates VBO
        vboId = glGenBuffers();
        vboIdList.add(vboId);
        textCoordsBuffer = MemoryUtil.memAllocFloat(textCoords.length);
        textCoordsBuffer.put(textCoords).flip();
        glBindBuffer(GL_ARRAY_BUFFER, vboId);
        glBufferData(GL_ARRAY_BUFFER, textCoordsBuffer, GL_STATIC_DRAW);
        glEnableVertexAttribArray(1);
        glVertexAttribPointer(1, 2, GL_FLOAT, false, 0, 0);

        // Vertex normals VBO
        vboId = glGenBuffers();
        vboIdList.add(vboId);
        vecNormalsBuffer = MemoryUtil.memAllocFloat(normals.length);
        if (vecNormalsBuffer.capacity() > 0) {
            vecNormalsBuffer.put(normals).flip();
        } else {
            // Create empty structure
            vecNormalsBuffer = MemoryUtil.memAllocFloat(positions.length);
        }
        glBindBuffer(GL_ARRAY_BUFFER, vboId);
        glBufferData(GL_ARRAY_BUFFER, vecNormalsBuffer, GL_STATIC_DRAW);
        glEnableVertexAttribArray(2);
        glVertexAttribPointer(2, 3, GL_FLOAT, false, 0, 0);

        // Weights
        vboId = glGenBuffers();
        vboIdList.add(vboId);
        weightsBuffer = MemoryUtil.memAllocFloat(weights.length);
        weightsBuffer.put(weights).flip();
        glBindBuffer(GL_ARRAY_BUFFER, vboId);
        glBufferData(GL_ARRAY_BUFFER, weightsBuffer, GL_STATIC_DRAW);
        glEnableVertexAttribArray(3);
        glVertexAttribPointer(3, 4, GL_FLOAT, false, 0, 0);

        // Joint indices
        vboId = glGenBuffers();
        vboIdList.add(vboId);
        jointIndicesBuffer = MemoryUtil.memAllocInt(jointIndices.length);
        jointIndicesBuffer.put(jointIndices).flip();
        glBindBuffer(GL_ARRAY_BUFFER, vboId);
        glBufferData(GL_ARRAY_BUFFER, jointIndicesBuffer, GL_STATIC_DRAW);
        glEnableVertexAttribArray(4);
        glVertexAttribPointer(4, 4, GL_FLOAT, false, 0, 0);

        // Index VBO
        vboId = glGenBuffers();
        vboIdList.add(vboId);
        indicesBuffer = MemoryUtil.memAllocInt(indices.length);
        indicesBuffer.put(indices).flip();
        glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, vboId);
        glBufferData(GL_ELEMENT_ARRAY_BUFFER, indicesBuffer, GL_STATIC_DRAW);

        glBindBuffer(GL_ARRAY_BUFFER, 0);
        glBindVertexArray(0);
    } finally {
        if (posBuffer != null) {
            MemoryUtil.memFree(posBuffer);
        }
        if (textCoordsBuffer != null) {
            MemoryUtil.memFree(textCoordsBuffer);
        }
        if (vecNormalsBuffer != null) {
            MemoryUtil.memFree(vecNormalsBuffer);
        }
        if (weightsBuffer != null) {
            MemoryUtil.memFree(weightsBuffer);
        }
        if (jointIndicesBuffer != null) {
            MemoryUtil.memFree(jointIndicesBuffer);
        }
        if (indicesBuffer != null) {
            MemoryUtil.memFree(indicesBuffer);
        }
    }
}
Example 4
Source File: Mesh.java    From lwjglbook with Apache License 2.0 4 votes vote down vote up 
public Mesh(float[] positions, float[] textCoords, int[] indices, Texture texture) {
    FloatBuffer posBuffer = null;
    FloatBuffer textCoordsBuffer = null;
    IntBuffer indicesBuffer = null;
    try {
        this.texture = texture;
        vertexCount = indices.length;
        vboIdList = new ArrayList<>();

        vaoId = glGenVertexArrays();
        glBindVertexArray(vaoId);

        // Position VBO
        int vboId = glGenBuffers();
        vboIdList.add(vboId);
        posBuffer = MemoryUtil.memAllocFloat(positions.length);
        posBuffer.put(positions).flip();
        glBindBuffer(GL_ARRAY_BUFFER, vboId);
        glBufferData(GL_ARRAY_BUFFER, posBuffer, GL_STATIC_DRAW);
        glEnableVertexAttribArray(0);
        glVertexAttribPointer(0, 3, GL_FLOAT, false, 0, 0);

        // Texture coordinates VBO
        vboId = glGenBuffers();
        vboIdList.add(vboId);
        textCoordsBuffer = MemoryUtil.memAllocFloat(textCoords.length);
        textCoordsBuffer.put(textCoords).flip();
        glBindBuffer(GL_ARRAY_BUFFER, vboId);
        glBufferData(GL_ARRAY_BUFFER, textCoordsBuffer, GL_STATIC_DRAW);
        glEnableVertexAttribArray(1);
        glVertexAttribPointer(1, 2, GL_FLOAT, false, 0, 0);

        // Index VBO
        vboId = glGenBuffers();
        vboIdList.add(vboId);
        indicesBuffer = MemoryUtil.memAllocInt(indices.length);
        indicesBuffer.put(indices).flip();
        glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, vboId);
        glBufferData(GL_ELEMENT_ARRAY_BUFFER, indicesBuffer, GL_STATIC_DRAW);

        glBindBuffer(GL_ARRAY_BUFFER, 0);
        glBindVertexArray(0);
    } finally {
        if (posBuffer != null) {
            MemoryUtil.memFree(posBuffer);
        }
        if (textCoordsBuffer != null) {
            MemoryUtil.memFree(textCoordsBuffer);
        }
        if (indicesBuffer != null) {
            MemoryUtil.memFree(indicesBuffer);
        }
    }
}
Example 5
Source File: Mesh.java    From lwjglbook with Apache License 2.0 4 votes vote down vote up 
public Mesh(float[] positions, float[] colours, int[] indices) {
    FloatBuffer posBuffer = null;
    FloatBuffer colourBuffer = null;
    IntBuffer indicesBuffer = null;
    try {
        vertexCount = indices.length;

        vaoId = glGenVertexArrays();
        glBindVertexArray(vaoId);

        // Position VBO
        posVboId = glGenBuffers();
        posBuffer = MemoryUtil.memAllocFloat(positions.length);
        posBuffer.put(positions).flip();
        glBindBuffer(GL_ARRAY_BUFFER, posVboId);
        glBufferData(GL_ARRAY_BUFFER, posBuffer, GL_STATIC_DRAW);
        glEnableVertexAttribArray(0);
        glVertexAttribPointer(0, 3, GL_FLOAT, false, 0, 0);

        // Colour VBO
        colourVboId = glGenBuffers();
        colourBuffer = MemoryUtil.memAllocFloat(colours.length);
        colourBuffer.put(colours).flip();
        glBindBuffer(GL_ARRAY_BUFFER, colourVboId);
        glBufferData(GL_ARRAY_BUFFER, colourBuffer, GL_STATIC_DRAW);
        glEnableVertexAttribArray(1);
        glVertexAttribPointer(1, 3, GL_FLOAT, false, 0, 0);

        // Index VBO
        idxVboId = glGenBuffers();
        indicesBuffer = MemoryUtil.memAllocInt(indices.length);
        indicesBuffer.put(indices).flip();
        glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, idxVboId);
        glBufferData(GL_ELEMENT_ARRAY_BUFFER, indicesBuffer, GL_STATIC_DRAW);

        glBindBuffer(GL_ARRAY_BUFFER, 0);
        glBindVertexArray(0);
    } finally {
        if (posBuffer != null) {
            MemoryUtil.memFree(posBuffer);
        }
        if (colourBuffer != null) {
            MemoryUtil.memFree(colourBuffer);
        }
        if (indicesBuffer != null) {
            MemoryUtil.memFree(indicesBuffer);
        }
    }
}
Example 6
Source File: Mesh.java    From lwjglbook with Apache License 2.0 4 votes vote down vote up 
public Mesh(float[] positions, float[] textCoords, float[] normals, int[] indices) {
    FloatBuffer posBuffer = null;
    FloatBuffer textCoordsBuffer = null;
    FloatBuffer vecNormalsBuffer = null;
    IntBuffer indicesBuffer = null;
    try {
        vertexCount = indices.length;
        vboIdList = new ArrayList<>();

        vaoId = glGenVertexArrays();
        glBindVertexArray(vaoId);

        // Position VBO
        int vboId = glGenBuffers();
        vboIdList.add(vboId);
        posBuffer = MemoryUtil.memAllocFloat(positions.length);
        posBuffer.put(positions).flip();
        glBindBuffer(GL_ARRAY_BUFFER, vboId);
        glBufferData(GL_ARRAY_BUFFER, posBuffer, GL_STATIC_DRAW);
        glEnableVertexAttribArray(0);
        glVertexAttribPointer(0, 3, GL_FLOAT, false, 0, 0);

        // Texture coordinates VBO
        vboId = glGenBuffers();
        vboIdList.add(vboId);
        textCoordsBuffer = MemoryUtil.memAllocFloat(textCoords.length);
        textCoordsBuffer.put(textCoords).flip();
        glBindBuffer(GL_ARRAY_BUFFER, vboId);
        glBufferData(GL_ARRAY_BUFFER, textCoordsBuffer, GL_STATIC_DRAW);
        glEnableVertexAttribArray(1);
        glVertexAttribPointer(1, 2, GL_FLOAT, false, 0, 0);

        // Vertex normals VBO
        vboId = glGenBuffers();
        vboIdList.add(vboId);
        vecNormalsBuffer = MemoryUtil.memAllocFloat(normals.length);
        vecNormalsBuffer.put(normals).flip();
        glBindBuffer(GL_ARRAY_BUFFER, vboId);
        glBufferData(GL_ARRAY_BUFFER, vecNormalsBuffer, GL_STATIC_DRAW);
        glEnableVertexAttribArray(2);
        glVertexAttribPointer(2, 3, GL_FLOAT, false, 0, 0);

        // Index VBO
        vboId = glGenBuffers();
        vboIdList.add(vboId);
        indicesBuffer = MemoryUtil.memAllocInt(indices.length);
        indicesBuffer.put(indices).flip();
        glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, vboId);
        glBufferData(GL_ELEMENT_ARRAY_BUFFER, indicesBuffer, GL_STATIC_DRAW);

        glBindBuffer(GL_ARRAY_BUFFER, 0);
        glBindVertexArray(0);
    } finally {
        if (posBuffer != null) {
            MemoryUtil.memFree(posBuffer);
        }
        if (textCoordsBuffer != null) {
            MemoryUtil.memFree(textCoordsBuffer);
        }
        if (vecNormalsBuffer != null) {
            MemoryUtil.memFree(vecNormalsBuffer);
        }
        if (indicesBuffer != null) {
            MemoryUtil.memFree(indicesBuffer);
        }
    }
}
Example 7
Source File: Mesh.java    From lwjglbook with Apache License 2.0 4 votes vote down vote up 
public Mesh(float[] positions, float[] textCoords, float[] normals, int[] indices) {
    FloatBuffer posBuffer = null;
    FloatBuffer textCoordsBuffer = null;
    FloatBuffer vecNormalsBuffer = null;
    IntBuffer indicesBuffer = null;
    try {
        vertexCount = indices.length;
        vboIdList = new ArrayList<>();

        vaoId = glGenVertexArrays();
        glBindVertexArray(vaoId);

        // Position VBO
        int vboId = glGenBuffers();
        vboIdList.add(vboId);
        posBuffer = MemoryUtil.memAllocFloat(positions.length);
        posBuffer.put(positions).flip();
        glBindBuffer(GL_ARRAY_BUFFER, vboId);
        glBufferData(GL_ARRAY_BUFFER, posBuffer, GL_STATIC_DRAW);
        glEnableVertexAttribArray(0);
        glVertexAttribPointer(0, 3, GL_FLOAT, false, 0, 0);

        // Texture coordinates VBO
        vboId = glGenBuffers();
        vboIdList.add(vboId);
        textCoordsBuffer = MemoryUtil.memAllocFloat(textCoords.length);
        textCoordsBuffer.put(textCoords).flip();
        glBindBuffer(GL_ARRAY_BUFFER, vboId);
        glBufferData(GL_ARRAY_BUFFER, textCoordsBuffer, GL_STATIC_DRAW);
        glEnableVertexAttribArray(1);
        glVertexAttribPointer(1, 2, GL_FLOAT, false, 0, 0);

        // Vertex normals VBO
        vboId = glGenBuffers();
        vboIdList.add(vboId);
        vecNormalsBuffer = MemoryUtil.memAllocFloat(normals.length);
        if (vecNormalsBuffer.capacity() > 0) {
            vecNormalsBuffer.put(normals).flip();
        } else {
            // Create empty structure
            vecNormalsBuffer = MemoryUtil.memAllocFloat(positions.length);
        }
        glBindBuffer(GL_ARRAY_BUFFER, vboId);
        glBufferData(GL_ARRAY_BUFFER, vecNormalsBuffer, GL_STATIC_DRAW);
        glEnableVertexAttribArray(2);
        glVertexAttribPointer(2, 3, GL_FLOAT, false, 0, 0);

        // Index VBO
        vboId = glGenBuffers();
        vboIdList.add(vboId);
        indicesBuffer = MemoryUtil.memAllocInt(indices.length);
        indicesBuffer.put(indices).flip();
        glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, vboId);
        glBufferData(GL_ELEMENT_ARRAY_BUFFER, indicesBuffer, GL_STATIC_DRAW);

        glBindBuffer(GL_ARRAY_BUFFER, 0);
        glBindVertexArray(0);
    } finally {
        if (posBuffer != null) {
            MemoryUtil.memFree(posBuffer);
        }
        if (textCoordsBuffer != null) {
            MemoryUtil.memFree(textCoordsBuffer);
        }
        if (vecNormalsBuffer != null) {
            MemoryUtil.memFree(vecNormalsBuffer);
        }
        if (indicesBuffer != null) {
            MemoryUtil.memFree(indicesBuffer);
        }
    }
}
Example 8
Source File: Mesh.java    From lwjglbook with Apache License 2.0 4 votes vote down vote up 
public Mesh(float[] positions, float[] textCoords, float[] normals, int[] indices) {
    FloatBuffer posBuffer = null;
    FloatBuffer textCoordsBuffer = null;
    FloatBuffer vecNormalsBuffer = null;
    IntBuffer indicesBuffer = null;
    try {
        vertexCount = indices.length;
        vboIdList = new ArrayList<>();

        vaoId = glGenVertexArrays();
        glBindVertexArray(vaoId);

        // Position VBO
        int vboId = glGenBuffers();
        vboIdList.add(vboId);
        posBuffer = MemoryUtil.memAllocFloat(positions.length);
        posBuffer.put(positions).flip();
        glBindBuffer(GL_ARRAY_BUFFER, vboId);
        glBufferData(GL_ARRAY_BUFFER, posBuffer, GL_STATIC_DRAW);
        glEnableVertexAttribArray(0);
        glVertexAttribPointer(0, 3, GL_FLOAT, false, 0, 0);

        // Texture coordinates VBO
        vboId = glGenBuffers();
        vboIdList.add(vboId);
        textCoordsBuffer = MemoryUtil.memAllocFloat(textCoords.length);
        textCoordsBuffer.put(textCoords).flip();
        glBindBuffer(GL_ARRAY_BUFFER, vboId);
        glBufferData(GL_ARRAY_BUFFER, textCoordsBuffer, GL_STATIC_DRAW);
        glEnableVertexAttribArray(1);
        glVertexAttribPointer(1, 2, GL_FLOAT, false, 0, 0);

        // Vertex normals VBO
        vboId = glGenBuffers();
        vboIdList.add(vboId);
        vecNormalsBuffer = MemoryUtil.memAllocFloat(normals.length);
        if (vecNormalsBuffer.capacity() > 0) {
            vecNormalsBuffer.put(normals).flip();
        } else {
            // Create empty structure
            vecNormalsBuffer = MemoryUtil.memAllocFloat(positions.length);
        }
        glBindBuffer(GL_ARRAY_BUFFER, vboId);
        glBufferData(GL_ARRAY_BUFFER, vecNormalsBuffer, GL_STATIC_DRAW);
        glEnableVertexAttribArray(2);
        glVertexAttribPointer(2, 3, GL_FLOAT, false, 0, 0);

        // Index VBO
        vboId = glGenBuffers();
        vboIdList.add(vboId);
        indicesBuffer = MemoryUtil.memAllocInt(indices.length);
        indicesBuffer.put(indices).flip();
        glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, vboId);
        glBufferData(GL_ELEMENT_ARRAY_BUFFER, indicesBuffer, GL_STATIC_DRAW);

        glBindBuffer(GL_ARRAY_BUFFER, 0);
        glBindVertexArray(0);
    } finally {
        if (posBuffer != null) {
            MemoryUtil.memFree(posBuffer);
        }
        if (textCoordsBuffer != null) {
            MemoryUtil.memFree(textCoordsBuffer);
        }
        if (vecNormalsBuffer != null) {
            MemoryUtil.memFree(vecNormalsBuffer);
        }
        if (indicesBuffer != null) {
            MemoryUtil.memFree(indicesBuffer);
        }
    }
}
Example 9
Source File: Mesh.java    From lwjglbook with Apache License 2.0 4 votes vote down vote up 
public Mesh(float[] positions, float[] textCoords, float[] normals, int[] indices, int[] jointIndices, float[] weights) {
    FloatBuffer posBuffer = null;
    FloatBuffer textCoordsBuffer = null;
    FloatBuffer vecNormalsBuffer = null;
    FloatBuffer weightsBuffer = null;
    IntBuffer jointIndicesBuffer = null;
    IntBuffer indicesBuffer = null;
    try {
        vertexCount = indices.length;
        vboIdList = new ArrayList<>();

        vaoId = glGenVertexArrays();
        glBindVertexArray(vaoId);

        // Position VBO
        int vboId = glGenBuffers();
        vboIdList.add(vboId);
        posBuffer = MemoryUtil.memAllocFloat(positions.length);
        posBuffer.put(positions).flip();
        glBindBuffer(GL_ARRAY_BUFFER, vboId);
        glBufferData(GL_ARRAY_BUFFER, posBuffer, GL_STATIC_DRAW);
        glEnableVertexAttribArray(0);
        glVertexAttribPointer(0, 3, GL_FLOAT, false, 0, 0);

        // Texture coordinates VBO
        vboId = glGenBuffers();
        vboIdList.add(vboId);
        textCoordsBuffer = MemoryUtil.memAllocFloat(textCoords.length);
        textCoordsBuffer.put(textCoords).flip();
        glBindBuffer(GL_ARRAY_BUFFER, vboId);
        glBufferData(GL_ARRAY_BUFFER, textCoordsBuffer, GL_STATIC_DRAW);
        glEnableVertexAttribArray(1);
        glVertexAttribPointer(1, 2, GL_FLOAT, false, 0, 0);

        // Vertex normals VBO
        vboId = glGenBuffers();
        vboIdList.add(vboId);
        vecNormalsBuffer = MemoryUtil.memAllocFloat(normals.length);
        if (vecNormalsBuffer.capacity() > 0) {
            vecNormalsBuffer.put(normals).flip();
        } else {
            // Create empty structure
            vecNormalsBuffer = MemoryUtil.memAllocFloat(positions.length);
        }
        glBindBuffer(GL_ARRAY_BUFFER, vboId);
        glBufferData(GL_ARRAY_BUFFER, vecNormalsBuffer, GL_STATIC_DRAW);
        glEnableVertexAttribArray(2);
        glVertexAttribPointer(2, 3, GL_FLOAT, false, 0, 0);

        // Weights
        vboId = glGenBuffers();
        vboIdList.add(vboId);
        weightsBuffer = MemoryUtil.memAllocFloat(weights.length);
        weightsBuffer.put(weights).flip();
        glBindBuffer(GL_ARRAY_BUFFER, vboId);
        glBufferData(GL_ARRAY_BUFFER, weightsBuffer, GL_STATIC_DRAW);
        glEnableVertexAttribArray(3);
        glVertexAttribPointer(3, 4, GL_FLOAT, false, 0, 0);

        // Joint indices
        vboId = glGenBuffers();
        vboIdList.add(vboId);
        jointIndicesBuffer = MemoryUtil.memAllocInt(jointIndices.length);
        jointIndicesBuffer.put(jointIndices).flip();
        glBindBuffer(GL_ARRAY_BUFFER, vboId);
        glBufferData(GL_ARRAY_BUFFER, jointIndicesBuffer, GL_STATIC_DRAW);
        glEnableVertexAttribArray(4);
        glVertexAttribPointer(4, 4, GL_FLOAT, false, 0, 0);

        // Index VBO
        vboId = glGenBuffers();
        vboIdList.add(vboId);
        indicesBuffer = MemoryUtil.memAllocInt(indices.length);
        indicesBuffer.put(indices).flip();
        glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, vboId);
        glBufferData(GL_ELEMENT_ARRAY_BUFFER, indicesBuffer, GL_STATIC_DRAW);

        glBindBuffer(GL_ARRAY_BUFFER, 0);
        glBindVertexArray(0);
    } finally {
        if (posBuffer != null) {
            MemoryUtil.memFree(posBuffer);
        }
        if (textCoordsBuffer != null) {
            MemoryUtil.memFree(textCoordsBuffer);
        }
        if (vecNormalsBuffer != null) {
            MemoryUtil.memFree(vecNormalsBuffer);
        }
        if (weightsBuffer != null) {
            MemoryUtil.memFree(weightsBuffer);
        }
        if (jointIndicesBuffer != null) {
            MemoryUtil.memFree(jointIndicesBuffer);
        }
        if (indicesBuffer != null) {
            MemoryUtil.memFree(indicesBuffer);
        }
    }
}
Example 10
Source File: InstancedMesh.java    From lwjglbook with Apache License 2.0 4 votes vote down vote up 
public InstancedMesh(float[] positions, float[] textCoords, float[] normals, int[] indices, int numInstances) {
    super(positions, textCoords, normals, indices, Mesh.createEmptyIntArray(Mesh.MAX_WEIGHTS * positions.length / 3, 0), Mesh.createEmptyFloatArray(Mesh.MAX_WEIGHTS * positions.length / 3, 0));

    this.numInstances = numInstances;

    glBindVertexArray(vaoId);

    // Model View Matrix
    instanceDataVBO = glGenBuffers();
    vboIdList.add(instanceDataVBO);
    instanceDataBuffer = MemoryUtil.memAllocFloat(numInstances * InstancedMesh.INSTANCE_SIZE_FLOATS);
    glBindBuffer(GL_ARRAY_BUFFER, instanceDataVBO);
    int start = 5;
    int strideStart = 0;
    for (int i = 0; i < 4; i++) {
        glVertexAttribPointer(start, 4, GL_FLOAT, false, InstancedMesh.INSTANCE_SIZE_BYTES, strideStart);
        glVertexAttribDivisor(start, 1);
        glEnableVertexAttribArray(start);
        start++;
        strideStart += InstancedMesh.VECTOR4F_SIZE_BYTES;
    }

    // Light view matrix
    for (int i = 0; i < 4; i++) {
        glVertexAttribPointer(start, 4, GL_FLOAT, false, InstancedMesh.INSTANCE_SIZE_BYTES, strideStart);
        glVertexAttribDivisor(start, 1);
        glEnableVertexAttribArray(start);
        start++;
        strideStart += InstancedMesh.VECTOR4F_SIZE_BYTES;
    }

    // Texture offsets
    glVertexAttribPointer(start, 2, GL_FLOAT, false, InstancedMesh.INSTANCE_SIZE_BYTES, strideStart);
    glVertexAttribDivisor(start, 1);
    glEnableVertexAttribArray(start);
    strideStart += InstancedMesh.FLOAT_SIZE_BYTES * 2;
    start++;

    // Selected
    glVertexAttribPointer(start, 1, GL_FLOAT, false, InstancedMesh.INSTANCE_SIZE_BYTES, strideStart);
    glVertexAttribDivisor(start, 1);
    glEnableVertexAttribArray(start);
    start++;

    glBindBuffer(GL_ARRAY_BUFFER, 0);
    glBindVertexArray(0);
}
Example 11
Source File: Mesh.java    From lwjglbook with Apache License 2.0 4 votes vote down vote up 
public Mesh(float[] positions, float[] textCoords, float[] normals, int[] indices, int[] jointIndices, float[] weights) {
    FloatBuffer posBuffer = null;
    FloatBuffer textCoordsBuffer = null;
    FloatBuffer vecNormalsBuffer = null;
    FloatBuffer weightsBuffer = null;
    IntBuffer jointIndicesBuffer = null;
    IntBuffer indicesBuffer = null;
    try {
        vertexCount = indices.length;
        vboIdList = new ArrayList<>();

        vaoId = glGenVertexArrays();
        glBindVertexArray(vaoId);

        // Position VBO
        int vboId = glGenBuffers();
        vboIdList.add(vboId);
        posBuffer = MemoryUtil.memAllocFloat(positions.length);
        posBuffer.put(positions).flip();
        glBindBuffer(GL_ARRAY_BUFFER, vboId);
        glBufferData(GL_ARRAY_BUFFER, posBuffer, GL_STATIC_DRAW);
        glEnableVertexAttribArray(0);
        glVertexAttribPointer(0, 3, GL_FLOAT, false, 0, 0);

        // Texture coordinates VBO
        vboId = glGenBuffers();
        vboIdList.add(vboId);
        textCoordsBuffer = MemoryUtil.memAllocFloat(textCoords.length);
        textCoordsBuffer.put(textCoords).flip();
        glBindBuffer(GL_ARRAY_BUFFER, vboId);
        glBufferData(GL_ARRAY_BUFFER, textCoordsBuffer, GL_STATIC_DRAW);
        glEnableVertexAttribArray(1);
        glVertexAttribPointer(1, 2, GL_FLOAT, false, 0, 0);

        // Vertex normals VBO
        vboId = glGenBuffers();
        vboIdList.add(vboId);
        vecNormalsBuffer = MemoryUtil.memAllocFloat(normals.length);
        if (vecNormalsBuffer.capacity() > 0) {
            vecNormalsBuffer.put(normals).flip();
        } else {
            // Create empty structure
            vecNormalsBuffer = MemoryUtil.memAllocFloat(positions.length);
        }
        glBindBuffer(GL_ARRAY_BUFFER, vboId);
        glBufferData(GL_ARRAY_BUFFER, vecNormalsBuffer, GL_STATIC_DRAW);
        glEnableVertexAttribArray(2);
        glVertexAttribPointer(2, 3, GL_FLOAT, false, 0, 0);

        // Weights
        vboId = glGenBuffers();
        vboIdList.add(vboId);
        weightsBuffer = MemoryUtil.memAllocFloat(weights.length);
        weightsBuffer.put(weights).flip();
        glBindBuffer(GL_ARRAY_BUFFER, vboId);
        glBufferData(GL_ARRAY_BUFFER, weightsBuffer, GL_STATIC_DRAW);
        glEnableVertexAttribArray(3);
        glVertexAttribPointer(3, 4, GL_FLOAT, false, 0, 0);

        // Joint indices
        vboId = glGenBuffers();
        vboIdList.add(vboId);
        jointIndicesBuffer = MemoryUtil.memAllocInt(jointIndices.length);
        jointIndicesBuffer.put(jointIndices).flip();
        glBindBuffer(GL_ARRAY_BUFFER, vboId);
        glBufferData(GL_ARRAY_BUFFER, jointIndicesBuffer, GL_STATIC_DRAW);
        glEnableVertexAttribArray(4);
        glVertexAttribPointer(4, 4, GL_FLOAT, false, 0, 0);

        // Index VBO
        vboId = glGenBuffers();
        vboIdList.add(vboId);
        indicesBuffer = MemoryUtil.memAllocInt(indices.length);
        indicesBuffer.put(indices).flip();
        glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, vboId);
        glBufferData(GL_ELEMENT_ARRAY_BUFFER, indicesBuffer, GL_STATIC_DRAW);

        glBindBuffer(GL_ARRAY_BUFFER, 0);
        glBindVertexArray(0);
    } finally {
        if (posBuffer != null) {
            MemoryUtil.memFree(posBuffer);
        }
        if (textCoordsBuffer != null) {
            MemoryUtil.memFree(textCoordsBuffer);
        }
        if (vecNormalsBuffer != null) {
            MemoryUtil.memFree(vecNormalsBuffer);
        }
        if (weightsBuffer != null) {
            MemoryUtil.memFree(weightsBuffer);
        }
        if (jointIndicesBuffer != null) {
            MemoryUtil.memFree(jointIndicesBuffer);
        }
        if (indicesBuffer != null) {
            MemoryUtil.memFree(indicesBuffer);
        }
    }
}
Example 12
Source File: InstancedMesh.java    From lwjglbook with Apache License 2.0 4 votes vote down vote up 
public InstancedMesh(float[] positions, float[] textCoords, float[] normals, int[] indices, int numInstances) {
    super(positions, textCoords, normals, indices, Mesh.createEmptyIntArray(Mesh.MAX_WEIGHTS * positions.length / 3, 0), Mesh.createEmptyFloatArray(Mesh.MAX_WEIGHTS * positions.length / 3, 0));

    this.numInstances = numInstances;

    glBindVertexArray(vaoId);

    // Model View Matrix
    instanceDataVBO = glGenBuffers();
    vboIdList.add(instanceDataVBO);
    instanceDataBuffer = MemoryUtil.memAllocFloat(numInstances * InstancedMesh.INSTANCE_SIZE_FLOATS);
    glBindBuffer(GL_ARRAY_BUFFER, instanceDataVBO);
    int start = 5;
    int strideStart = 0;
    for (int i = 0; i < 4; i++) {
        glVertexAttribPointer(start, 4, GL_FLOAT, false, InstancedMesh.INSTANCE_SIZE_BYTES, strideStart);
        glVertexAttribDivisor(start, 1);
        glEnableVertexAttribArray(start);
        start++;
        strideStart += InstancedMesh.VECTOR4F_SIZE_BYTES;
    }

    // Light view matrix
    for (int i = 0; i < 4; i++) {
        glVertexAttribPointer(start, 4, GL_FLOAT, false, InstancedMesh.INSTANCE_SIZE_BYTES, strideStart);
        glVertexAttribDivisor(start, 1);
        glEnableVertexAttribArray(start);
        start++;
        strideStart += InstancedMesh.VECTOR4F_SIZE_BYTES;
    }

    // Texture offsets
    glVertexAttribPointer(start, 2, GL_FLOAT, false, InstancedMesh.INSTANCE_SIZE_BYTES, strideStart);
    glVertexAttribDivisor(start, 1);
    glEnableVertexAttribArray(start);
    strideStart += InstancedMesh.FLOAT_SIZE_BYTES * 2;
    start++;

    // Selected
    glVertexAttribPointer(start, 1, GL_FLOAT, false, InstancedMesh.INSTANCE_SIZE_BYTES, strideStart);
    glVertexAttribDivisor(start, 1);
    glEnableVertexAttribArray(start);
    start++;

    glBindBuffer(GL_ARRAY_BUFFER, 0);
    glBindVertexArray(0);
}
Example 13
Source File: InstancedMesh.java    From lwjglbook with Apache License 2.0 4 votes vote down vote up 
public InstancedMesh(float[] positions, float[] textCoords, float[] normals, int[] indices, int numInstances) {
    super(positions, textCoords, normals, indices, Mesh.createEmptyIntArray(Mesh.MAX_WEIGHTS * positions.length / 3, 0), Mesh.createEmptyFloatArray(Mesh.MAX_WEIGHTS * positions.length / 3, 0));

    this.numInstances = numInstances;

    glBindVertexArray(vaoId);

    // Model View Matrix
    instanceDataVBO = glGenBuffers();
    vboIdList.add(instanceDataVBO);
    instanceDataBuffer = MemoryUtil.memAllocFloat(numInstances * InstancedMesh.INSTANCE_SIZE_FLOATS);
    glBindBuffer(GL_ARRAY_BUFFER, instanceDataVBO);
    int start = 5;
    int strideStart = 0;
    for (int i = 0; i < 4; i++) {
        glVertexAttribPointer(start, 4, GL_FLOAT, false, InstancedMesh.INSTANCE_SIZE_BYTES, strideStart);
        glVertexAttribDivisor(start, 1);
        glEnableVertexAttribArray(start);
        start++;
        strideStart += InstancedMesh.VECTOR4F_SIZE_BYTES;
    }

    // Light view matrix
    for (int i = 0; i < 4; i++) {
        glVertexAttribPointer(start, 4, GL_FLOAT, false, InstancedMesh.INSTANCE_SIZE_BYTES, strideStart);
        glVertexAttribDivisor(start, 1);
        glEnableVertexAttribArray(start);
        start++;
        strideStart += InstancedMesh.VECTOR4F_SIZE_BYTES;
    }

    // Texture offsets
    glVertexAttribPointer(start, 2, GL_FLOAT, false, InstancedMesh.INSTANCE_SIZE_BYTES, strideStart);
    glVertexAttribDivisor(start, 1);
    glEnableVertexAttribArray(start);
    strideStart += InstancedMesh.FLOAT_SIZE_BYTES * 2;
    start++;

    // Selected
    glVertexAttribPointer(start, 1, GL_FLOAT, false, InstancedMesh.INSTANCE_SIZE_BYTES, strideStart);
    glVertexAttribDivisor(start, 1);
    glEnableVertexAttribArray(start);
    start++;

    glBindBuffer(GL_ARRAY_BUFFER, 0);
    glBindVertexArray(0);
}
Example 14
Source File: Mesh.java    From lwjglbook with Apache License 2.0 4 votes vote down vote up 
public Mesh(float[] positions, float[] textCoords, float[] normals, int[] indices) {
    FloatBuffer posBuffer = null;
    FloatBuffer textCoordsBuffer = null;
    FloatBuffer vecNormalsBuffer = null;
    IntBuffer indicesBuffer = null;
    try {
        vertexCount = indices.length;
        vboIdList = new ArrayList<>();

        vaoId = glGenVertexArrays();
        glBindVertexArray(vaoId);

        // Position VBO
        int vboId = glGenBuffers();
        vboIdList.add(vboId);
        posBuffer = MemoryUtil.memAllocFloat(positions.length);
        posBuffer.put(positions).flip();
        glBindBuffer(GL_ARRAY_BUFFER, vboId);
        glBufferData(GL_ARRAY_BUFFER, posBuffer, GL_STATIC_DRAW);
        glEnableVertexAttribArray(0);
        glVertexAttribPointer(0, 3, GL_FLOAT, false, 0, 0);

        // Texture coordinates VBO
        vboId = glGenBuffers();
        vboIdList.add(vboId);
        textCoordsBuffer = MemoryUtil.memAllocFloat(textCoords.length);
        textCoordsBuffer.put(textCoords).flip();
        glBindBuffer(GL_ARRAY_BUFFER, vboId);
        glBufferData(GL_ARRAY_BUFFER, textCoordsBuffer, GL_STATIC_DRAW);
        glEnableVertexAttribArray(1);
        glVertexAttribPointer(1, 2, GL_FLOAT, false, 0, 0);

        // Vertex normals VBO
        vboId = glGenBuffers();
        vboIdList.add(vboId);
        vecNormalsBuffer = MemoryUtil.memAllocFloat(normals.length);
        if (vecNormalsBuffer.capacity() > 0) {
            vecNormalsBuffer.put(normals).flip();
        } else {
            // Create empty structure
            vecNormalsBuffer = MemoryUtil.memAllocFloat(positions.length);
        }
        glBindBuffer(GL_ARRAY_BUFFER, vboId);
        glBufferData(GL_ARRAY_BUFFER, vecNormalsBuffer, GL_STATIC_DRAW);
        glEnableVertexAttribArray(2);
        glVertexAttribPointer(2, 3, GL_FLOAT, false, 0, 0);

        // Index VBO
        vboId = glGenBuffers();
        vboIdList.add(vboId);
        indicesBuffer = MemoryUtil.memAllocInt(indices.length);
        indicesBuffer.put(indices).flip();
        glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, vboId);
        glBufferData(GL_ELEMENT_ARRAY_BUFFER, indicesBuffer, GL_STATIC_DRAW);

        glBindBuffer(GL_ARRAY_BUFFER, 0);
        glBindVertexArray(0);
    } finally {
        if (posBuffer != null) {
            MemoryUtil.memFree(posBuffer);
        }
        if (textCoordsBuffer != null) {
            MemoryUtil.memFree(textCoordsBuffer);
        }
        if (vecNormalsBuffer != null) {
            MemoryUtil.memFree(vecNormalsBuffer);
        }
        if (indicesBuffer != null) {
            MemoryUtil.memFree(indicesBuffer);
        }
    }
}
Example 15
Source File: Mesh.java    From lwjglbook with Apache License 2.0 4 votes vote down vote up 
public Mesh(float[] positions, float[] textCoords, float[] normals, int[] indices) {
    FloatBuffer posBuffer = null;
    FloatBuffer textCoordsBuffer = null;
    FloatBuffer vecNormalsBuffer = null;
    IntBuffer indicesBuffer = null;
    try {
        vertexCount = indices.length;
        vboIdList = new ArrayList<>();

        vaoId = glGenVertexArrays();
        glBindVertexArray(vaoId);

        // Position VBO
        int vboId = glGenBuffers();
        vboIdList.add(vboId);
        posBuffer = MemoryUtil.memAllocFloat(positions.length);
        posBuffer.put(positions).flip();
        glBindBuffer(GL_ARRAY_BUFFER, vboId);
        glBufferData(GL_ARRAY_BUFFER, posBuffer, GL_STATIC_DRAW);
        glEnableVertexAttribArray(0);
        glVertexAttribPointer(0, 3, GL_FLOAT, false, 0, 0);

        // Texture coordinates VBO
        vboId = glGenBuffers();
        vboIdList.add(vboId);
        textCoordsBuffer = MemoryUtil.memAllocFloat(textCoords.length);
        textCoordsBuffer.put(textCoords).flip();
        glBindBuffer(GL_ARRAY_BUFFER, vboId);
        glBufferData(GL_ARRAY_BUFFER, textCoordsBuffer, GL_STATIC_DRAW);
        glEnableVertexAttribArray(1);
        glVertexAttribPointer(1, 2, GL_FLOAT, false, 0, 0);

        // Vertex normals VBO
        vboId = glGenBuffers();
        vboIdList.add(vboId);
        vecNormalsBuffer = MemoryUtil.memAllocFloat(normals.length);
        if (vecNormalsBuffer.capacity() > 0) {
            vecNormalsBuffer.put(normals).flip();
        } else {
            // Create empty structure
            vecNormalsBuffer = MemoryUtil.memAllocFloat(positions.length);
        }
        glBindBuffer(GL_ARRAY_BUFFER, vboId);
        glBufferData(GL_ARRAY_BUFFER, vecNormalsBuffer, GL_STATIC_DRAW);
        glEnableVertexAttribArray(2);
        glVertexAttribPointer(2, 3, GL_FLOAT, false, 0, 0);

        // Index VBO
        vboId = glGenBuffers();
        vboIdList.add(vboId);
        indicesBuffer = MemoryUtil.memAllocInt(indices.length);
        indicesBuffer.put(indices).flip();
        glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, vboId);
        glBufferData(GL_ELEMENT_ARRAY_BUFFER, indicesBuffer, GL_STATIC_DRAW);

        glBindBuffer(GL_ARRAY_BUFFER, 0);
        glBindVertexArray(0);
    } finally {
        if (posBuffer != null) {
            MemoryUtil.memFree(posBuffer);
        }
        if (textCoordsBuffer != null) {
            MemoryUtil.memFree(textCoordsBuffer);
        }
        if (vecNormalsBuffer != null) {
            MemoryUtil.memFree(vecNormalsBuffer);
        }
        if (indicesBuffer != null) {
            MemoryUtil.memFree(indicesBuffer);
        }
    }
}
Example 16
Source File: InstancedMesh.java    From lwjglbook with Apache License 2.0 4 votes vote down vote up 
public InstancedMesh(float[] positions, float[] textCoords, float[] normals, int[] indices, int numInstances) {
    super(positions, textCoords, normals, indices, Mesh.createEmptyIntArray(Mesh.MAX_WEIGHTS * positions.length / 3, 0), Mesh.createEmptyFloatArray(Mesh.MAX_WEIGHTS * positions.length / 3, 0));

    this.numInstances = numInstances;

    glBindVertexArray(vaoId);

    // Model View Matrix
    instanceDataVBO = glGenBuffers();
    vboIdList.add(instanceDataVBO);
    instanceDataBuffer = MemoryUtil.memAllocFloat(numInstances * InstancedMesh.INSTANCE_SIZE_FLOATS);
    glBindBuffer(GL_ARRAY_BUFFER, instanceDataVBO);
    int start = 5;
    int strideStart = 0;
    for (int i = 0; i < 4; i++) {
        glVertexAttribPointer(start, 4, GL_FLOAT, false, InstancedMesh.INSTANCE_SIZE_BYTES, strideStart);
        glVertexAttribDivisor(start, 1);
        glEnableVertexAttribArray(start);
        start++;
        strideStart += InstancedMesh.VECTOR4F_SIZE_BYTES;
    }

    // Light view matrix
    for (int i = 0; i < 4; i++) {
        glVertexAttribPointer(start, 4, GL_FLOAT, false, InstancedMesh.INSTANCE_SIZE_BYTES, strideStart);
        glVertexAttribDivisor(start, 1);
        glEnableVertexAttribArray(start);
        start++;
        strideStart += InstancedMesh.VECTOR4F_SIZE_BYTES;
    }

    // Texture offsets
    glVertexAttribPointer(start, 2, GL_FLOAT, false, InstancedMesh.INSTANCE_SIZE_BYTES, strideStart);
    glVertexAttribDivisor(start, 1);
    glEnableVertexAttribArray(start);
    strideStart += InstancedMesh.FLOAT_SIZE_BYTES * 2;
    start++;

    // Selected
    glVertexAttribPointer(start, 1, GL_FLOAT, false, InstancedMesh.INSTANCE_SIZE_BYTES, strideStart);
    glVertexAttribDivisor(start, 1);
    glEnableVertexAttribArray(start);
    start++;

    glBindBuffer(GL_ARRAY_BUFFER, 0);
    glBindVertexArray(0);
}
Example 17
Source File: Mesh.java    From lwjglbook with Apache License 2.0 4 votes vote down vote up 
public Mesh(float[] positions, float[] colours, int[] indices) {
    FloatBuffer posBuffer = null;
    FloatBuffer colourBuffer = null;
    IntBuffer indicesBuffer = null;
    try {
        vertexCount = indices.length;

        vaoId = glGenVertexArrays();
        glBindVertexArray(vaoId);

        // Position VBO
        posVboId = glGenBuffers();
        posBuffer = MemoryUtil.memAllocFloat(positions.length);
        posBuffer.put(positions).flip();
        glBindBuffer(GL_ARRAY_BUFFER, posVboId);
        glBufferData(GL_ARRAY_BUFFER, posBuffer, GL_STATIC_DRAW);
        glEnableVertexAttribArray(0);
        glVertexAttribPointer(0, 3, GL_FLOAT, false, 0, 0);

        // Colour VBO
        colourVboId = glGenBuffers();
        colourBuffer = MemoryUtil.memAllocFloat(colours.length);
        colourBuffer.put(colours).flip();
        glBindBuffer(GL_ARRAY_BUFFER, colourVboId);
        glBufferData(GL_ARRAY_BUFFER, colourBuffer, GL_STATIC_DRAW);
        glEnableVertexAttribArray(1);
        glVertexAttribPointer(1, 3, GL_FLOAT, false, 0, 0);

        // Index VBO
        idxVboId = glGenBuffers();
        indicesBuffer = MemoryUtil.memAllocInt(indices.length);
        indicesBuffer.put(indices).flip();
        glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, idxVboId);
        glBufferData(GL_ELEMENT_ARRAY_BUFFER, indicesBuffer, GL_STATIC_DRAW);

        glBindBuffer(GL_ARRAY_BUFFER, 0);
        glBindVertexArray(0);
    } finally {
        if (posBuffer != null) {
            MemoryUtil.memFree(posBuffer);
        }
        if (colourBuffer != null) {
            MemoryUtil.memFree(colourBuffer);
        }
        if (indicesBuffer != null) {
            MemoryUtil.memFree(indicesBuffer);
        }
    }
}
Example 18
Source File: Mesh.java    From lwjglbook with Apache License 2.0 4 votes vote down vote up 
public Mesh(float[] positions, float[] textCoords, float[] normals, int[] indices, int[] jointIndices, float[] weights) {
    FloatBuffer posBuffer = null;
    FloatBuffer textCoordsBuffer = null;
    FloatBuffer vecNormalsBuffer = null;
    FloatBuffer weightsBuffer = null;
    IntBuffer jointIndicesBuffer = null;
    IntBuffer indicesBuffer = null;
    try {
        vertexCount = indices.length;
        vboIdList = new ArrayList<>();

        vaoId = glGenVertexArrays();
        glBindVertexArray(vaoId);

        // Position VBO
        int vboId = glGenBuffers();
        vboIdList.add(vboId);
        posBuffer = MemoryUtil.memAllocFloat(positions.length);
        posBuffer.put(positions).flip();
        glBindBuffer(GL_ARRAY_BUFFER, vboId);
        glBufferData(GL_ARRAY_BUFFER, posBuffer, GL_STATIC_DRAW);
        glEnableVertexAttribArray(0);
        glVertexAttribPointer(0, 3, GL_FLOAT, false, 0, 0);

        // Texture coordinates VBO
        vboId = glGenBuffers();
        vboIdList.add(vboId);
        textCoordsBuffer = MemoryUtil.memAllocFloat(textCoords.length);
        textCoordsBuffer.put(textCoords).flip();
        glBindBuffer(GL_ARRAY_BUFFER, vboId);
        glBufferData(GL_ARRAY_BUFFER, textCoordsBuffer, GL_STATIC_DRAW);
        glEnableVertexAttribArray(1);
        glVertexAttribPointer(1, 2, GL_FLOAT, false, 0, 0);

        // Vertex normals VBO
        vboId = glGenBuffers();
        vboIdList.add(vboId);
        vecNormalsBuffer = MemoryUtil.memAllocFloat(normals.length);
        if (vecNormalsBuffer.capacity() > 0) {
            vecNormalsBuffer.put(normals).flip();
        } else {
            // Create empty structure
            vecNormalsBuffer = MemoryUtil.memAllocFloat(positions.length);
        }
        glBindBuffer(GL_ARRAY_BUFFER, vboId);
        glBufferData(GL_ARRAY_BUFFER, vecNormalsBuffer, GL_STATIC_DRAW);
        glEnableVertexAttribArray(2);
        glVertexAttribPointer(2, 3, GL_FLOAT, false, 0, 0);

        // Weights
        vboId = glGenBuffers();
        vboIdList.add(vboId);
        weightsBuffer = MemoryUtil.memAllocFloat(weights.length);
        weightsBuffer.put(weights).flip();
        glBindBuffer(GL_ARRAY_BUFFER, vboId);
        glBufferData(GL_ARRAY_BUFFER, weightsBuffer, GL_STATIC_DRAW);
        glEnableVertexAttribArray(3);
        glVertexAttribPointer(3, 4, GL_FLOAT, false, 0, 0);

        // Joint indices
        vboId = glGenBuffers();
        vboIdList.add(vboId);
        jointIndicesBuffer = MemoryUtil.memAllocInt(jointIndices.length);
        jointIndicesBuffer.put(jointIndices).flip();
        glBindBuffer(GL_ARRAY_BUFFER, vboId);
        glBufferData(GL_ARRAY_BUFFER, jointIndicesBuffer, GL_STATIC_DRAW);
        glEnableVertexAttribArray(4);
        glVertexAttribPointer(4, 4, GL_FLOAT, false, 0, 0);

        // Index VBO
        vboId = glGenBuffers();
        vboIdList.add(vboId);
        indicesBuffer = MemoryUtil.memAllocInt(indices.length);
        indicesBuffer.put(indices).flip();
        glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, vboId);
        glBufferData(GL_ELEMENT_ARRAY_BUFFER, indicesBuffer, GL_STATIC_DRAW);

        glBindBuffer(GL_ARRAY_BUFFER, 0);
        glBindVertexArray(0);
    } finally {
        if (posBuffer != null) {
            MemoryUtil.memFree(posBuffer);
        }
        if (textCoordsBuffer != null) {
            MemoryUtil.memFree(textCoordsBuffer);
        }
        if (vecNormalsBuffer != null) {
            MemoryUtil.memFree(vecNormalsBuffer);
        }
        if (weightsBuffer != null) {
            MemoryUtil.memFree(weightsBuffer);
        }
        if (jointIndicesBuffer != null) {
            MemoryUtil.memFree(jointIndicesBuffer);
        }
        if (indicesBuffer != null) {
            MemoryUtil.memFree(indicesBuffer);
        }
    }
}
Example 19
Source File: Mesh.java    From lwjglbook with Apache License 2.0 4 votes vote down vote up 
public Mesh(float[] positions, float[] textCoords, float[] normals, int[] indices) {
    FloatBuffer posBuffer = null;
    FloatBuffer textCoordsBuffer = null;
    FloatBuffer vecNormalsBuffer = null;
    IntBuffer indicesBuffer = null;
    try {
        vertexCount = indices.length;
        vboIdList = new ArrayList<>();

        vaoId = glGenVertexArrays();
        glBindVertexArray(vaoId);

        // Position VBO
        int vboId = glGenBuffers();
        vboIdList.add(vboId);
        posBuffer = MemoryUtil.memAllocFloat(positions.length);
        posBuffer.put(positions).flip();
        glBindBuffer(GL_ARRAY_BUFFER, vboId);
        glBufferData(GL_ARRAY_BUFFER, posBuffer, GL_STATIC_DRAW);
        glEnableVertexAttribArray(0);
        glVertexAttribPointer(0, 3, GL_FLOAT, false, 0, 0);

        // Texture coordinates VBO
        vboId = glGenBuffers();
        vboIdList.add(vboId);
        textCoordsBuffer = MemoryUtil.memAllocFloat(textCoords.length);
        textCoordsBuffer.put(textCoords).flip();
        glBindBuffer(GL_ARRAY_BUFFER, vboId);
        glBufferData(GL_ARRAY_BUFFER, textCoordsBuffer, GL_STATIC_DRAW);
        glEnableVertexAttribArray(1);
        glVertexAttribPointer(1, 2, GL_FLOAT, false, 0, 0);

        // Vertex normals VBO
        vboId = glGenBuffers();
        vboIdList.add(vboId);
        vecNormalsBuffer = MemoryUtil.memAllocFloat(normals.length);
        vecNormalsBuffer.put(normals).flip();
        glBindBuffer(GL_ARRAY_BUFFER, vboId);
        glBufferData(GL_ARRAY_BUFFER, vecNormalsBuffer, GL_STATIC_DRAW);
        glEnableVertexAttribArray(2);
        glVertexAttribPointer(2, 3, GL_FLOAT, false, 0, 0);

        // Index VBO
        vboId = glGenBuffers();
        vboIdList.add(vboId);
        indicesBuffer = MemoryUtil.memAllocInt(indices.length);
        indicesBuffer.put(indices).flip();
        glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, vboId);
        glBufferData(GL_ELEMENT_ARRAY_BUFFER, indicesBuffer, GL_STATIC_DRAW);

        glBindBuffer(GL_ARRAY_BUFFER, 0);
        glBindVertexArray(0);
    } finally {
        if (posBuffer != null) {
            MemoryUtil.memFree(posBuffer);
        }
        if (textCoordsBuffer != null) {
            MemoryUtil.memFree(textCoordsBuffer);
        }
        if (vecNormalsBuffer != null) {
            MemoryUtil.memFree(vecNormalsBuffer);
        }
        if (indicesBuffer != null) {
            MemoryUtil.memFree(indicesBuffer);
        }
    }
}
Example 20
Source File: Mesh.java    From lwjglbook with Apache License 2.0 4 votes vote down vote up 
public Mesh(float[] positions, float[] textCoords, float[] normals, int[] indices) {
    FloatBuffer posBuffer = null;
    FloatBuffer textCoordsBuffer = null;
    FloatBuffer vecNormalsBuffer = null;
    IntBuffer indicesBuffer = null;
    try {
        vertexCount = indices.length;
        vboIdList = new ArrayList<>();

        vaoId = glGenVertexArrays();
        glBindVertexArray(vaoId);

        // Position VBO
        int vboId = glGenBuffers();
        vboIdList.add(vboId);
        posBuffer = MemoryUtil.memAllocFloat(positions.length);
        posBuffer.put(positions).flip();
        glBindBuffer(GL_ARRAY_BUFFER, vboId);
        glBufferData(GL_ARRAY_BUFFER, posBuffer, GL_STATIC_DRAW);
        glEnableVertexAttribArray(0);
        glVertexAttribPointer(0, 3, GL_FLOAT, false, 0, 0);

        // Texture coordinates VBO
        vboId = glGenBuffers();
        vboIdList.add(vboId);
        textCoordsBuffer = MemoryUtil.memAllocFloat(textCoords.length);
        textCoordsBuffer.put(textCoords).flip();
        glBindBuffer(GL_ARRAY_BUFFER, vboId);
        glBufferData(GL_ARRAY_BUFFER, textCoordsBuffer, GL_STATIC_DRAW);
        glEnableVertexAttribArray(1);
        glVertexAttribPointer(1, 2, GL_FLOAT, false, 0, 0);

        // Vertex normals VBO
        vboId = glGenBuffers();
        vboIdList.add(vboId);
        vecNormalsBuffer = MemoryUtil.memAllocFloat(normals.length);
        if (vecNormalsBuffer.capacity() > 0) {
            vecNormalsBuffer.put(normals).flip();
        } else {
            // Create empty structure
            vecNormalsBuffer = MemoryUtil.memAllocFloat(positions.length);
        }
        glBindBuffer(GL_ARRAY_BUFFER, vboId);
        glBufferData(GL_ARRAY_BUFFER, vecNormalsBuffer, GL_STATIC_DRAW);
        glEnableVertexAttribArray(2);
        glVertexAttribPointer(2, 3, GL_FLOAT, false, 0, 0);

        // Index VBO
        vboId = glGenBuffers();
        vboIdList.add(vboId);
        indicesBuffer = MemoryUtil.memAllocInt(indices.length);
        indicesBuffer.put(indices).flip();
        glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, vboId);
        glBufferData(GL_ELEMENT_ARRAY_BUFFER, indicesBuffer, GL_STATIC_DRAW);

        glBindBuffer(GL_ARRAY_BUFFER, 0);
        glBindVertexArray(0);
    } finally {
        if (posBuffer != null) {
            MemoryUtil.memFree(posBuffer);
        }
        if (textCoordsBuffer != null) {
            MemoryUtil.memFree(textCoordsBuffer);
        }
        if (vecNormalsBuffer != null) {
            MemoryUtil.memFree(vecNormalsBuffer);
        }
        if (indicesBuffer != null) {
            MemoryUtil.memFree(indicesBuffer);
        }
    }
}