Java Code Examples for com.jogamp.opengl.GL3#glClearBufferfv()

The following examples show how to use com.jogamp.opengl.GL3#glClearBufferfv() . 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: Gl_330_texture_integer_rgb10a2ui.java From jogl-samples with MIT License

6 votes

@Override
protected boolean render(GL gl) {

    GL3 gl3 = (GL3) gl;

    Mat4 projection = glm.perspective_((float) Math.PI * 0.25f, 4.0f / 3.0f, 0.1f, 100.0f);
    Mat4 model = new Mat4(1.0f);
    Mat4 mvp = projection.mul(viewMat4()).mul(model);

    gl3.glViewport(0, 0, windowSize.x, windowSize.y);
    gl3.glClearBufferfv(GL_COLOR, 0, clearColor.put(0, 1).put(1, .5f).put(2, 0).put(3, 1));

    gl3.glUseProgram(programName);
    gl3.glUniform1i(uniformDiffuse, 0);
    gl3.glUniformMatrix4fv(uniformMvp, 1, false, mvp.toFa_(), 0);

    gl3.glActiveTexture(GL_TEXTURE0);
    gl3.glBindTexture(GL_TEXTURE_2D, textureName.get(0));
    gl3.glBindVertexArray(vertexArrayName.get(0));

    gl3.glDrawArraysInstanced(GL_TRIANGLES, 0, vertexCount, 1);

    return true;
}

Example 2

Source File: Gl_320_fbo_shadow.java From jogl-samples with MIT License

6 votes

private void renderFramebuffer(GL3 gl3) {

        gl3.glEnable(GL_DEPTH_TEST);
        gl3.glDepthFunc(GL_LESS);

        gl3.glViewport(0, 0, windowSize.x, windowSize.y);

        gl3.glBindFramebuffer(GL_FRAMEBUFFER, 0);
        gl3.glClearBufferfv(GL_DEPTH, 0, clearDepth);
        gl3.glClearBufferfv(GL_COLOR, 0, clearColor);

        gl3.glUseProgram(programName[Program.RENDER]);
        gl3.glUniform1i(uniformShadow, 0);
        gl3.glUniformBlockBinding(programName[Program.RENDER], uniformTransform[Program.RENDER],
                Semantic.Uniform.TRANSFORM0);

        gl3.glActiveTexture(GL_TEXTURE0);
        gl3.glBindTexture(GL_TEXTURE_2D, textureName.get(0));

        gl3.glBindVertexArray(vertexArrayName.get(Program.RENDER));
        gl3.glDrawElementsInstancedBaseVertex(GL_TRIANGLES, elementCount, GL_UNSIGNED_SHORT, 0, 1, 0);

        gl3.glDisable(GL_DEPTH_TEST);

        checkError(gl3, "renderFramebuffer");
    }

Example 3

Source File: Gl_330_fbo_multisample_explicit_nv.java From jogl-samples with MIT License

5 votes

private void renderFBO(GL3 gl3) {

        Mat4 perspective = glm.perspective_((float) Math.PI * 0.25f, (float) FRAMEBUFFER_SIZE.x / FRAMEBUFFER_SIZE.y,
                0.1f, 100.0f);
        Mat4 model = new Mat4(1.0f).scale(new Vec3(1, -1, 1));
        Mat4 mvp = perspective.mul(viewMat4()).mul(model);

        gl3.glEnable(GL_DEPTH_TEST);

        gl3.glUseProgram(programName[Program.THROUGH]);
        gl3.glUniform1i(uniformDiffuse[Program.THROUGH], 0);
        gl3.glUniformMatrix4fv(uniformMvp[Program.THROUGH], 1, false, mvp.toFa_(), 0);

        gl3.glViewport(0, 0, FRAMEBUFFER_SIZE.x, FRAMEBUFFER_SIZE.y);

        gl3.glBindFramebuffer(GL_FRAMEBUFFER, framebufferName.get(0));
        gl3.glClearBufferfv(GL_DEPTH, 0, clearDepth.put(0, 1));
        gl3.glClearBufferfv(GL_COLOR, 0, clearColor.put(0, 1).put(1, .5f).put(2, 0).put(3, 1));

        gl3.glActiveTexture(GL_TEXTURE0);
        gl3.glBindTexture(GL_TEXTURE_2D, textureName.get(Texture.DIFFUSE));
        gl3.glBindSampler(0, samplerName.get(0));
        gl3.glBindVertexArray(vertexArrayName.get(0));

        gl3.glDrawArraysInstanced(GL_TRIANGLES, 0, vertexCount, 5);

        gl3.glDisable(GL_DEPTH_TEST);

        checkError(gl3, "renderFBO");
    }

Example 4

Source File: Gl_320_texture_compressed_ext.java From jogl-samples with MIT License

5 votes

@Override
protected boolean render(GL gl) {

    GL3 gl3 = (GL3) gl;

    Mat4 projection = glm.perspective_((float) Math.PI * 0.25f, 4.0f / 3.0f, 0.1f, 1000.0f);
    Mat4 model = new Mat4(1.0f);
    Mat4 mvp = projection.mul(viewMat4()).mul(model);

    clearColor.put(new float[]{1.0f, 0.5f, 0.0f, 1.0f}).rewind();
    gl3.glClearBufferfv(GL_COLOR, 0, clearColor);

    // Bind the program for use
    gl3.glUseProgram(programName);
    gl3.glUniformMatrix4fv(uniformMvp, 1, false, mvp.toFa_(), 0);
    gl3.glUniform1i(uniformDiffuse, 0);

    gl3.glBindVertexArray(vertexArrayName.get(0));

    gl3.glActiveTexture(GL_TEXTURE0);
    for (int index = 0; index < Texture.MAX; ++index) {
        gl3.glViewport(viewport[index].x, viewport[index].y, viewport[index].z, viewport[index].w);
        gl3.glBindTexture(GL_TEXTURE_2D, textureName.get(index));
        gl3.glDrawArraysInstanced(GL_TRIANGLES, 0, vertexCount, 1);
    }

    return true;
}

Example 5

Source File: Gl_320_glsl_builtin_blocks.java From jogl-samples with MIT License

5 votes

@Override
protected boolean render(GL gl) {

    GL3 gl3 = (GL3) gl;

    {
        gl3.glBindBuffer(GL_UNIFORM_BUFFER, bufferName.get(Buffer.TRANSFORM));
        ByteBuffer pointer = gl3.glMapBufferRange(
                GL_UNIFORM_BUFFER, 0, Mat4.SIZE,
                GL_MAP_WRITE_BIT | GL_MAP_INVALIDATE_BUFFER_BIT);

        Mat4 projection = glm.perspective_((float) Math.PI * 0.25f, 4.0f / 3.0f, 0.1f, 100.0f);
        Mat4 model = new Mat4(1.0f);

        pointer.asFloatBuffer().put(projection.mul(viewMat4()).mul(model).toFa_());

        // Make sure the uniform buffer is uploaded
        gl3.glUnmapBuffer(GL_UNIFORM_BUFFER);
    }

    gl3.glViewport(0, 0, windowSize.x, windowSize.y);
    gl3.glClearBufferfv(GL_COLOR, 0, clearColor);

    gl3.glUseProgram(programName);
    gl3.glUniform1i(uniformDiffuse, 0);
    gl3.glUniformBlockBinding(programName, uniformTransform, Semantic.Uniform.TRANSFORM0);

    gl3.glActiveTexture(GL_TEXTURE0);
    gl3.glBindTexture(GL_TEXTURE_2D, textureName.get(0));
    gl3.glBindVertexArray(vertexArrayName.get(0));
    gl3.glBindBufferBase(GL_UNIFORM_BUFFER, Semantic.Uniform.TRANSFORM0, bufferName.get(Buffer.TRANSFORM));

    gl3.glDrawElementsInstancedBaseVertex(GL_TRIANGLES, elementCount, GL_UNSIGNED_SHORT, 0, 1, 0);

    return true;
}

Example 6

Source File: Gl_320_glsl_input_struct.java From jogl-samples with MIT License

5 votes

@Override
protected boolean render(GL gl) {

    GL3 gl3 = (GL3) gl;

    {
        gl3.glBindBuffer(GL_UNIFORM_BUFFER, bufferName.get(Buffer.TRANSFORM));
        ByteBuffer pointer = gl3.glMapBufferRange(
                GL_UNIFORM_BUFFER, 0, Mat4.SIZE,
                GL_MAP_WRITE_BIT | GL_MAP_INVALIDATE_BUFFER_BIT);

        Mat4 projection = glm.perspective_((float) Math.PI * 0.25f, 4.0f / 3.0f, 0.1f, 100.0f);
        Mat4 model = new Mat4(1.0f);

        pointer.asFloatBuffer().put(projection.mul(viewMat4()).mul(model).toFa_());

        // Make sure the uniform buffer is uploaded
        gl3.glUnmapBuffer(GL_UNIFORM_BUFFER);
    }

    gl3.glViewport(0, 0, windowSize.x, windowSize.y);
    gl3.glClearBufferfv(GL_COLOR, 0, clearColor);

    gl3.glUseProgram(programName);
    gl3.glUniform1i(uniformDiffuse, 0);
    gl3.glUniformBlockBinding(programName, uniformTransform, Semantic.Uniform.TRANSFORM0);

    gl3.glActiveTexture(GL_TEXTURE0);
    gl3.glBindTexture(GL_TEXTURE_2D, textureName.get(0));
    gl3.glBindVertexArray(vertexArrayName.get(0));
    gl3.glBindBufferBase(GL_UNIFORM_BUFFER, Semantic.Uniform.TRANSFORM0, bufferName.get(Buffer.TRANSFORM));

    gl3.glDrawElementsInstancedBaseVertex(GL_TRIANGLES, elementCount, GL_UNSIGNED_SHORT, 0, 1, 0);

    return true;
}

Example 7

Source File: Gl_320_glsl_precision.java From jogl-samples with MIT License

5 votes

@Override
protected boolean render(GL gl) {

    GL3 gl3 = (GL3) gl;

    {
        gl3.glBindBuffer(GL_UNIFORM_BUFFER, bufferName.get(Buffer.TRANSFORM));
        ByteBuffer pointer = gl3.glMapBufferRange(
                GL_UNIFORM_BUFFER, 0, Mat4.SIZE,
                GL_MAP_WRITE_BIT | GL_MAP_INVALIDATE_BUFFER_BIT);

        Mat4 projection = glm.perspective_((float) Math.PI * 0.25f, 4.0f / 3.0f, 0.1f, 100.0f);
        Mat4 model = new Mat4(1.0f);

        pointer.asFloatBuffer().put(projection.mul(viewMat4()).mul(model).toFa_());

        // Make sure the uniform buffer is uploaded
        gl3.glUnmapBuffer(GL_UNIFORM_BUFFER);
    }

    gl3.glViewport(0, 0, windowSize.x, windowSize.y);
    gl3.glClearBufferfv(GL_COLOR, 0, clearColor);

    gl3.glUseProgram(programName);
    gl3.glUniform1i(uniformDiffuse, 0);
    gl3.glUniformBlockBinding(programName, uniformTransform, Semantic.Uniform.TRANSFORM0);

    gl3.glActiveTexture(GL_TEXTURE0);
    gl3.glBindTexture(GL_TEXTURE_2D, textureName.get(0));
    gl3.glBindVertexArray(vertexArrayName.get(0));
    gl3.glBindBufferBase(GL_UNIFORM_BUFFER, Semantic.Uniform.TRANSFORM0, bufferName.get(Buffer.TRANSFORM));

    gl3.glDrawElementsInstancedBaseVertex(GL_TRIANGLES, elementCount, GL_UNSIGNED_SHORT, 0, 1, 0);

    return true;
}

Example 8

Source File: Gl_320_fbo_multisample_integer.java From jogl-samples with MIT License

5 votes

@Override
protected boolean render(GL gl) {

    GL3 gl3 = (GL3) gl;

    // Clear the framebuffer
    gl3.glBindFramebuffer(GL_FRAMEBUFFER, 0);
    gl3.glClearBufferfv(GL_COLOR, 0, new float[]{1.0f, 0.5f, 0.0f, 1.0f}, 0);

    // Pass 1
    // Render the scene in a multisampled framebuffer
    gl3.glEnable(GL_MULTISAMPLE);
    renderFBO(gl3, framebufferName.get(Framebuffer.RENDER));
    gl3.glDisable(GL_MULTISAMPLE);

    // Resolved multisampling
    gl3.glBindFramebuffer(GL_READ_FRAMEBUFFER, framebufferName.get(Framebuffer.RENDER));
    gl3.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, framebufferName.get(Framebuffer.RESOLVE));
    gl3.glBlitFramebuffer(
            0, 0, windowSize.x / framebufferSize, windowSize.y / framebufferSize,
            0, 0, windowSize.x / framebufferSize, windowSize.y / framebufferSize,
            GL_COLOR_BUFFER_BIT, GL_NEAREST);
    gl3.glBindFramebuffer(GL_FRAMEBUFFER, 0);

    // Pass 2
    // Render the colorbuffer from the multisampled framebuffer
    renderFB(gl3, textureName.get(Texture.COLORBUFFER));

    return checkError(gl3, "render");
}

Example 9

Source File: Gl_300_fbo_multisample.java From jogl-samples with MIT License

5 votes

@Override
public boolean render(GL gl) {

    GL3 gl3 = (GL3) gl;

    // Clear the framebuffer
    gl3.glBindFramebuffer(GL_FRAMEBUFFER, 0);
    gl3.glClearBufferfv(GL_COLOR, 0, new float[]{1.0f, 0.5f, 0.0f, 1.0f}, 0);

    gl3.glUseProgram(programName);
    gl3.glUniform1i(uniformDiffuse, 0);

    // Pass 1
    // Render the scene in a multisampled framebuffer
    gl3.glEnable(GL_MULTISAMPLE);
    renderFBO(gl3, framebufferName.get(Framebuffer.RENDER));
    gl3.glDisable(GL_MULTISAMPLE);

    // Resolved multisampling
    gl3.glBindFramebuffer(GL_READ_FRAMEBUFFER, framebufferName.get(Framebuffer.RENDER));
    gl3.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, framebufferName.get(Framebuffer.RESOLVE));
    gl3.glDrawBuffer(GL_COLOR_ATTACHMENT0);
    gl3.glBlitFramebuffer(
            0, 0, FRAMEBUFFER_SIZE.x, FRAMEBUFFER_SIZE.y,
            0, 0, FRAMEBUFFER_SIZE.x, FRAMEBUFFER_SIZE.y,
            GL_COLOR_BUFFER_BIT, GL_LINEAR);
    gl3.glBindFramebuffer(GL_FRAMEBUFFER, 0);

    // Pass 2
    // Render the colorbuffer from the multisampled framebuffer
    gl3.glViewport(0, 0, windowSize.x, windowSize.y);
    renderFB(gl3, textureName.get(Texture.RESOLVE));
    return true;
}

Example 10

Source File: Gl_320_texture_derivative.java From jogl-samples with MIT License

5 votes

@Override
protected boolean render(GL gl) {

    GL3 gl3 = (GL3) gl;

    {
        gl3.glBindBuffer(GL_UNIFORM_BUFFER, bufferName.get(Buffer.TRANSFORM));
        ByteBuffer pointer = gl3.glMapBufferRange(
                GL_UNIFORM_BUFFER, 0, Mat4.SIZE,
                GL_MAP_WRITE_BIT | GL_MAP_INVALIDATE_BUFFER_BIT);

        Mat4 projection = glm.perspective_((float) Math.PI * 0.25f, 4.0f / 3.0f, 0.1f, 100.0f);
        Mat4 model = new Mat4(1.0f).scale(new Vec3(2.0f));

        pointer.asFloatBuffer().put(projection.mul(viewMat4()).mul(model).toFa_());

        // Make sure the uniform buffer is uploaded
        gl3.glUnmapBuffer(GL_UNIFORM_BUFFER);
    }

    gl3.glViewport(0, 0, windowSize.x, windowSize.y);
    clearColor.put(new float[]{1.0f, 0.5f, 0.0f, 1.0f}).rewind();
    gl3.glClearBufferfv(GL_COLOR, 0, clearColor);

    gl3.glUseProgram(programName);
    gl3.glUniform1i(uniformDiffuse, 0);
    gl3.glUniformBlockBinding(programName, uniformTransform, Semantic.Uniform.TRANSFORM0);

    gl3.glActiveTexture(GL_TEXTURE0);
    gl3.glBindTexture(GL_TEXTURE_2D, textureName.get(0));
    gl3.glBindBufferBase(GL_UNIFORM_BUFFER, Semantic.Uniform.TRANSFORM0, bufferName.get(Buffer.TRANSFORM));
    gl3.glBindVertexArray(vertexArrayName.get(0));

    gl3.glDrawElementsInstancedBaseVertex(GL_TRIANGLES, elementCount, GL_UNSIGNED_SHORT, 0, 1, 0);

    return true;
}

Example 11

Source File: Gl_320_fbo_multisample_explicit.java From jogl-samples with MIT License

5 votes

private void renderFBO(GL3 gl3, int framebuffer) {

        Mat4 perspective = glm.perspective_((float) Math.PI * 0.25f, (float) FRAMEBUFFER_SIZE.x / FRAMEBUFFER_SIZE.y,
                0.1f, 100.0f);
        Mat4 model = new Mat4(1.0f).scale(new Vec3(1.0f));
        Mat4 mvp = perspective.mul(viewMat4()).mul(model);

        gl3.glEnable(GL_DEPTH_TEST);

        gl3.glUseProgram(programName[Program.THROUGH]);
        gl3.glUniform1i(uniformDiffuse[Program.THROUGH], 0);
        gl3.glUniformMatrix4fv(uniformMvp[Program.THROUGH], 1, false, mvp.toFa_(), 0);

        gl3.glViewport(0, 0, FRAMEBUFFER_SIZE.x, FRAMEBUFFER_SIZE.y);

        gl3.glBindFramebuffer(GL_FRAMEBUFFER, framebuffer);
        float[] depth = new float[]{1.0f};
        gl3.glClearBufferfv(GL_DEPTH, 0, depth, 0);
        gl3.glClearBufferfv(GL_COLOR, 0, new float[]{1.0f, 0.5f, 0.0f, 1.0f}, 0);

        gl3.glActiveTexture(GL_TEXTURE0);
        gl3.glBindTexture(GL_TEXTURE_2D, textureName.get(Texture.DIFFUSE));
        gl3.glBindVertexArray(vertexArrayName.get(0));

        gl3.glDrawArraysInstanced(GL_TRIANGLES, 0, vertexCount, 5);

        gl3.glDisable(GL_DEPTH_TEST);
    }

Example 12

Source File: Gl_320_primitive_front_face.java From jogl-samples with MIT License

5 votes

@Override
protected boolean render(GL gl) {

    GL3 gl3 = (GL3) gl;

    Mat4 projection = glm.perspective_((float) Math.PI * 0.25f, (float) windowSize.x / windowSize.y, 0.1f, 100.0f);
    Mat4 model = new Mat4(1.0f);
    Mat4 mvp = projection.mul(viewMat4()).mul(model);

    // Clear color buffer with black
    gl3.glClearBufferfv(GL_COLOR, 0, clearColor);

    // Bind program
    gl3.glUseProgram(programName);
    // Set the value of MVP uniform.
    gl3.glUniformMatrix4fv(uniformMvp, 1, false, mvp.toFa_(), 0);

    // Bind vertex array & draw 
    gl3.glBindVertexArray(vertexArrayName.get(0));

    // Set the display viewport
    gl3.glViewport(0, 0, windowSize.x, windowSize.y);

    gl3.glProvokingVertex(GL_LAST_VERTEX_CONVENTION);
    gl3.glDrawElementsInstancedBaseVertex(GL_TRIANGLES, elementCount, GL_UNSIGNED_SHORT, 0, 1, 0);

    return true;
}

Example 13

Source File: Gl_330_texture_swizzle.java From jogl-samples with MIT License

5 votes

@Override
protected boolean render(GL gl) {

    GL3 gl3 = (GL3) gl;

    Mat4 projection = glm.perspective_((float) Math.PI * 0.25f, (float) windowSize.x / windowSize.y, 0.1f, 1000.0f);
    Mat4 model = new Mat4(1.0f);
    Mat4 mvp = projection.mul(viewMat4()).mul(model);

    gl3.glClearBufferfv(GL_COLOR, 0, clearColor.put(0, 1).put(1, .5f).put(2, 0).put(3, 1));

    gl3.glUseProgram(programName);
    gl3.glUniformMatrix4fv(uniformMvp, 1, false, mvp.toFa_(), 0);
    gl3.glUniform1i(uniformDiffuse, 0);

    gl3.glActiveTexture(GL_TEXTURE0);
    gl3.glBindTexture(GL_TEXTURE_2D, texture2dName.get(0));

    gl3.glBindVertexArray(vertexArrayName.get(0));

    for (int index = 0; index < Viewport.MAX; ++index) {
        gl3.glViewport(viewport[index].x, viewport[index].y, viewport[index].z, viewport[index].w);

        gl3.glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_SWIZZLE_R, swizzleR[index]);
        gl3.glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_SWIZZLE_G, swizzleG[index]);
        gl3.glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_SWIZZLE_B, swizzleB[index]);
        gl3.glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_SWIZZLE_A, swizzleA[index]);

        gl3.glDrawArraysInstanced(GL_TRIANGLES, 0, vertexCount, 1);
    }

    return true;
}

Example 14

Source File: Gl_320_texture_cube.java From jogl-samples with MIT License

5 votes

@Override
protected boolean render(GL gl) {

    GL3 gl3 = (GL3) gl;

    Mat4 projection = glm.perspective_((float) Math.PI * 0.25f, 2.0f / 3.0f, 0.1f, 1000.0f);
    Mat4 view = viewMat4();
    Mat4 model = new Mat4(1.0f);
    Mat4 mvp = projection.mul(view).mul(model);
    Mat4 mv = view.mul(model);

    clearColor.put(new float[]{1.0f, 1.0f, 1.0f, 1.0f}).rewind();
    gl3.glClearBufferfv(GL_COLOR, 0, clearColor);

    gl3.glUseProgram(programName);
    gl3.glUniformMatrix4fv(uniformMv, 1, false, mv.toFa_(), 0);
    gl3.glUniformMatrix4fv(uniformMvp, 1, false, mvp.toFa_(), 0);
    gl3.glUniform1i(uniformEnvironment, 0);
    gl3.glUniform3fv(uniformCamera, 1, new float[]{0.0f, 0.0f, -cameraDistance()}, 0);

    gl3.glBindVertexArray(vertexArrayName.get(0));

    gl3.glActiveTexture(GL_TEXTURE0);
    gl3.glBindTexture(GL_TEXTURE_CUBE_MAP, textureName.get(0));

    gl3.glEnable(GL_TEXTURE_CUBE_MAP_SEAMLESS);
    gl3.glViewport(0, 0, windowSize.x >> 1, windowSize.y);

    gl3.glDrawArraysInstanced(GL_TRIANGLES, 0, vertexCount, 1);

    gl3.glDisable(GL_TEXTURE_CUBE_MAP_SEAMLESS);
    gl3.glViewport(windowSize.x >> 1, 0, windowSize.x >> 1, windowSize.y);

    gl3.glDrawArraysInstanced(GL_TRIANGLES, 0, vertexCount, 1);

    return true;
}

Example 15

Source File: Gl_320_primitive_shading.java From jogl-samples with MIT License

5 votes

@Override
protected boolean render(GL gl) {

    GL3 gl3 = (GL3) gl;

    {
        gl3.glBindBuffer(GL_UNIFORM_BUFFER, bufferName.get(Buffer.TRANSFORM));
        ByteBuffer pointer = gl3.glMapBufferRange(
                GL_UNIFORM_BUFFER, 0, Mat4.SIZE,
                GL_MAP_WRITE_BIT | GL_MAP_INVALIDATE_BUFFER_BIT);

        Mat4 projection = glm.perspective_((float) Math.PI * 0.25f, 4.0f / 3.0f, 0.1f, 100.0f);
        Mat4 model = new Mat4(1.0f);

        pointer.asFloatBuffer().put(projection.mul(viewMat4()).mul(model).toFa_());

        // Make sure the uniform buffer is uploaded
        gl3.glUnmapBuffer(GL_UNIFORM_BUFFER);
    }

    gl3.glViewport(0, 0, windowSize.x, windowSize.y);
    gl3.glClearBufferfv(GL_COLOR, 0, clearColor);

    gl3.glUseProgram(programName);

    gl3.glBindVertexArray(vertexArrayName.get(0));
    gl3.glBindBufferBase(GL_UNIFORM_BUFFER, Semantic.Uniform.TRANSFORM0, bufferName.get(Buffer.TRANSFORM));
    gl3.glBindBufferBase(GL_UNIFORM_BUFFER, Semantic.Uniform.CONSTANT, bufferName.get(Buffer.CONSTANT));

    gl3.glBeginQuery(GL_PRIMITIVES_GENERATED, queryName.get(0));
    {
        gl3.glDrawElementsInstancedBaseVertex(GL_TRIANGLES, elementCount, GL_UNSIGNED_SHORT, 0, 1, 0);
    }
    gl3.glEndQuery(GL_PRIMITIVES_GENERATED);

    long[] primitivesGenerated = {0};
    gl3.glGetQueryObjectui64v(queryName.get(0), GL_QUERY_RESULT, primitivesGenerated, 0);

    return primitivesGenerated[0] > 0;
}

Example 16

Source File: Gl_320_fbo_depth_multisample.java From jogl-samples with MIT License

4 votes

@Override
protected boolean render(GL gl) {

    GL3 gl3 = (GL3) gl;

    {
        gl3.glBindBuffer(GL_UNIFORM_BUFFER, bufferName.get(Buffer.TRANSFORM));
        ByteBuffer pointer = gl3.glMapBufferRange(
                GL_UNIFORM_BUFFER, 0, Mat4.SIZE,
                GL_MAP_WRITE_BIT | GL_MAP_INVALIDATE_BUFFER_BIT);

        //glm::mat4 Projection = glm::perspectiveFov(glm::pi<float>() * 0.25f, 640.f, 480.f, 0.1f, 100.0f);
        Mat4 projection = glm.perspective_((float) Math.PI * 0.25f, 4.0f / 3.0f, 0.1f, 8.0f);
        Mat4 model = new Mat4(1.0f).scale(new Vec3(5.0f));

        pointer.asFloatBuffer().put(projection.mul(viewMat4()).mul(model).toFa_());

        // Make sure the uniform buffer is uploaded
        gl3.glUnmapBuffer(GL_UNIFORM_BUFFER);
    }

    gl3.glEnable(GL_DEPTH_TEST);
    gl3.glDepthFunc(GL_LESS);

    gl3.glViewport(0, 0, windowSize.x, windowSize.y);

    gl3.glBindFramebuffer(GL_FRAMEBUFFER, framebufferName.get(Framebuffer.DEPTH_MULTISAMPLE));
    gl3.glClearBufferfv(GL_DEPTH, 0, clearDepth);

    // Bind rendering objects
    gl3.glUseProgram(programName[Program.TEXTURE]);
    gl3.glUniformBlockBinding(programName[Program.TEXTURE],
            uniformTransform, Semantic.Uniform.TRANSFORM0);

    gl3.glActiveTexture(GL_TEXTURE0);
    gl3.glBindTexture(GL_TEXTURE_2D, textureName.get(Texture.DIFFUSE));
    gl3.glBindVertexArray(vertexArrayName.get(Program.TEXTURE));
    gl3.glBindBufferBase(GL_UNIFORM_BUFFER, Semantic.Uniform.TRANSFORM0, bufferName.get(Buffer.TRANSFORM));

    gl3.glDrawElementsInstancedBaseVertex(GL_TRIANGLES, elementCount, GL_UNSIGNED_SHORT, 0, 2, 0);

    // Pass 2
    gl3.glDisable(GL_DEPTH_TEST);

    gl3.glBindFramebuffer(GL_FRAMEBUFFER, 0);
    gl3.glUseProgram(programName[Program.SPLASH]);

    gl3.glActiveTexture(GL_TEXTURE0);
    gl3.glBindVertexArray(vertexArrayName.get(Program.SPLASH));
    gl3.glBindTexture(GL_TEXTURE_2D_MULTISAMPLE, textureName.get(Texture.MULTISAMPLE));

    gl3.glDrawArraysInstanced(GL_TRIANGLES, 0, 3, 1);

    return true;
}

Example 17

Source File: Gl_320_fbo_blend.java From jogl-samples with MIT License

4 votes

@Override
protected boolean render(GL gl) {

    GL3 gl3 = (GL3) gl;

    {
        gl3.glBindBuffer(GL_UNIFORM_BUFFER, bufferName.get(Buffer.TRANSFORM));
        ByteBuffer pointer = gl3.glMapBufferRange(
                GL_UNIFORM_BUFFER, 0, Mat4.SIZE,
                GL_MAP_WRITE_BIT | GL_MAP_INVALIDATE_BUFFER_BIT);

        Mat4 projection = glm.perspective_((float) Math.PI * 0.25f, (float) windowSize.x / windowSize.y, 0.1f,
                100.0f);
        Mat4 model = new Mat4(1.0f);

        pointer.asFloatBuffer().put(projection.mul(viewMat4()).mul(model).toFa_());

        // Make sure the uniform buffer is uploaded
        gl3.glUnmapBuffer(GL_UNIFORM_BUFFER);
    }

    {
        gl3.glViewport(0, 0, windowSize.x * framebufferScale, windowSize.y * framebufferScale);

        gl3.glBindFramebuffer(GL_FRAMEBUFFER, framebufferName.get(0));
        gl3.glClearBufferfv(GL_COLOR, 0, new float[]{0.0f, 0.0f, 0.0f, 1.0f}, 0);

        gl3.glEnable(GL_BLEND);
        gl3.glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);

        gl3.glUseProgram(programName[Program.TEXTURE]);

        gl3.glActiveTexture(GL_TEXTURE0);
        gl3.glBindTexture(GL_TEXTURE_2D, textureName.get(Texture.DIFFUSE));
        gl3.glBindVertexArray(vertexArrayName.get(Program.TEXTURE));
        gl3.glBindBufferBase(GL_UNIFORM_BUFFER, Semantic.Uniform.TRANSFORM0, bufferName.get(Buffer.TRANSFORM));

        gl3.glDrawElementsInstancedBaseVertex(GL_TRIANGLES, elementCount, GL_UNSIGNED_SHORT, 0, 100, 0);

        gl3.glDisable(GL_BLEND);
    }

    {
        gl3.glDisable(GL_DEPTH_TEST);

        gl3.glViewport(0, 0, windowSize.x, windowSize.y);

        gl3.glBindFramebuffer(GL_FRAMEBUFFER, 0);

        gl3.glUseProgram(programName[Program.SPLASH]);

        gl3.glActiveTexture(GL_TEXTURE0);
        gl3.glBindVertexArray(vertexArrayName.get(Program.SPLASH));
        gl3.glBindTexture(GL_TEXTURE_2D, textureName.get(Texture.COLORBUFFER));

        gl3.glDrawArraysInstanced(GL_TRIANGLES, 0, 3, 1);
    }

    return true;
}

Example 18

Source File: Gl_320_query_occlusion.java From jogl-samples with MIT License

4 votes

@Override
protected boolean render(GL gl) {

    GL3 gl3 = (GL3) gl;

    {
        gl3.glBindBuffer(GL_UNIFORM_BUFFER, bufferName.get(Buffer.TRANSFORM));
        ByteBuffer pointer = gl3.glMapBufferRange(GL_UNIFORM_BUFFER,
                0, Mat4.SIZE, GL_MAP_WRITE_BIT | GL_MAP_INVALIDATE_BUFFER_BIT);

        Mat4 projection = glm.perspective_((float) Math.PI * 0.25f, (float) windowSize.x / windowSize.y, 0.1f, 100.0f);
        Mat4 model = new Mat4(1.0f);

        pointer.asFloatBuffer().put(projection.mul(viewMat4()).mul(model).toFa_());

        gl3.glUnmapBuffer(GL_UNIFORM_BUFFER);
    }

    // Set the display viewport
    gl3.glViewport(0, 0, windowSize.x, windowSize.y);

    // Clear color buffer with black
    gl3.glClearBufferfv(GL_COLOR, 0, clearColor);

    gl3.glUseProgram(programName);
    gl3.glBindVertexArray(vertexArrayName.get(0));
    gl3.glBindBufferBase(GL_UNIFORM_BUFFER, Semantic.Uniform.TRANSFORM0, bufferName.get(Buffer.TRANSFORM));

    // Samples count query
    gl3.glBeginQuery(GL_SAMPLES_PASSED, queryName.get(0));
    {
        gl3.glDrawArraysInstanced(GL_TRIANGLES, 0, vertexCount, 1);
    }
    gl3.glEndQuery(GL_SAMPLES_PASSED);

    // Get the count of samples. 
    // If the result of the query isn't here yet, we wait here...
    IntBuffer samplesCount = GLBuffers.newDirectIntBuffer(1);
    gl3.glGetQueryObjectuiv(queryName.get(0), GL_QUERY_RESULT, samplesCount);
    System.out.println("Samples (fragments) count: " + samplesCount.get(0));

    BufferUtils.destroyDirectBuffer(samplesCount);

    return true;
}

Example 19

Source File: Gl_320_test_scissor.java From jogl-samples with MIT License

4 votes

@Override
protected boolean render(GL gl) {

    GL3 gl3 = (GL3) gl;

    Vec3 minScissor = new Vec3(10000.f, 10000.f, 10000.f);
    Vec3 maxScissor = new Vec3(-10000.f, -10000.f, -10000.f);

    {
        gl3.glBindBuffer(GL_UNIFORM_BUFFER, bufferName.get(Buffer.TRANSFORM));
        ByteBuffer pointer = gl3.glMapBufferRange(
                GL_UNIFORM_BUFFER, 0, Mat4.SIZE,
                GL_MAP_WRITE_BIT | GL_MAP_INVALIDATE_BUFFER_BIT);

        Mat4 projection = glm.perspective_((float) Math.PI * 0.25f, 4.0f / 3.0f, 0.1f, 100.0f);
        Mat4 view = viewMat4();
        Mat4 model = new Mat4(1.0f);

        pointer.asFloatBuffer().put(projection.mul_(view).mul(model).toFa_());

        // Make sure the uniform buffer is uploaded
        gl3.glUnmapBuffer(GL_UNIFORM_BUFFER);

        for (int i = 0; i < vertexCount; ++i) {

            Vec3 projected = glm.project_(
                    new Vec3(vertexData[i * 4 + 0], vertexData[i * 4 + 1], 0.0f),
                    view.mul_(model),
                    projection,
                    new Vec4(0, 0, windowSize.x, windowSize.y));

            minScissor.min(projected);
            maxScissor.max(projected);
        }
    }

    gl3.glViewport(0, 0, windowSize.x, windowSize.y);
    clearColor.put(new float[]{1.0f, 0.5f, 0.0f, 1.0f}).rewind();
    gl3.glClearBufferfv(GL_COLOR, 0, clearColor);

    gl3.glScissor((int) minScissor.x, (int) minScissor.y, (int) (maxScissor.x - minScissor.x),
            (int) (maxScissor.y - minScissor.y));
    gl3.glEnable(GL_SCISSOR_TEST);
    clearColor.put(new float[]{0.0f, 0.0f, 0.0f, 1.0f}).rewind();
    gl3.glClearBufferfv(GL_COLOR, 0, clearColor);

    // Bind the program for use
    gl3.glUseProgram(programName);
    gl3.glUniform1i(uniformDiffuse, 0);
    gl3.glUniformBlockBinding(programName, uniformTransform, Semantic.Uniform.TRANSFORM0);

    gl3.glActiveTexture(GL_TEXTURE0);
    gl3.glBindTexture(GL_TEXTURE_2D, textureName.get(0));
    gl3.glBindBufferBase(GL_UNIFORM_BUFFER, Semantic.Uniform.TRANSFORM0, bufferName.get(Buffer.TRANSFORM));
    gl3.glBindVertexArray(vertexArrayName.get(0));

    gl3.glDrawArraysInstanced(GL_TRIANGLES, 0, vertexCount, 1);

    gl3.glDisable(GL_SCISSOR_TEST);

    return true;
}

Example 20

Source File: Gl_320_caps.java From jogl-samples with MIT License

3 votes

@Override
protected boolean render(GL gl) {

    GL3 gl3 = (GL3) gl;

    gl3.glViewport(0, 0, windowSize.x, windowSize.y);
    gl3.glClearBufferfv(GL_COLOR, 0, new float[]{1.0f, 0.5f, 0.0f, 1.0f}, 0);

    return true;
}