Java Code Examples for com.jogamp.opengl.GL4#glBindSampler()

private void renderFBO(GL4 gl4) {
    //glEnable(GL_SAMPLE_MASK);
    //glSampleMaski(0, 0xFF);

    gl4.glEnable(GL_MULTISAMPLE);
    gl4.glEnable(GL_SAMPLE_SHADING);
    gl4.glMinSampleShading(4 / 4.0f);

    gl4.glViewportIndexedf(0, 0, 0, FRAMEBUFFER_SIZE.x, FRAMEBUFFER_SIZE.y);
    gl4.glBindFramebuffer(GL_FRAMEBUFFER, framebufferName.get(Framebuffer.RENDER));
    gl4.glClearBufferfv(GL_COLOR, 0, clearColor.put(0, 1.0f).put(1, 1.0f).put(2, 1.0f).put(3, 1.0f));

    gl4.glBindBufferRange(GL_UNIFORM_BUFFER, Semantic.Uniform.TRANSFORM0, bufferName.get(Buffer.TRANSFORM), 0,
            uniformBlockSize);
    gl4.glBindSampler(0, samplerName.get(0));
    gl4.glBindTextureUnit(0, textureName.get(Texture.TEXTURE));
    gl4.glBindVertexArray(vertexArrayName.get(0));

    gl4.glDrawElementsInstancedBaseVertexBaseInstance(GL_TRIANGLES, elementCount, GL_UNSIGNED_SHORT, 0, 1, 0, 0);

    gl4.glDisable(GL_MULTISAMPLE);
}
 

private boolean initSampler(GL4 gl4) {

        FloatBuffer borderColor = GLBuffers.newDirectFloatBuffer(new float[]{0.0f, 0.0f, 0.0f, 0.0f});

        gl4.glGenSamplers(1, samplerName);

        gl4.glSamplerParameteri(samplerName.get(0), GL_TEXTURE_MIN_FILTER, GL_NEAREST);
        gl4.glSamplerParameteri(samplerName.get(0), GL_TEXTURE_MAG_FILTER, GL_NEAREST);
        gl4.glSamplerParameteri(samplerName.get(0), GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
        gl4.glSamplerParameteri(samplerName.get(0), GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
        gl4.glSamplerParameteri(samplerName.get(0), GL_TEXTURE_WRAP_R, GL_CLAMP_TO_EDGE);
        gl4.glSamplerParameterfv(samplerName.get(0), GL_TEXTURE_BORDER_COLOR, borderColor);
        gl4.glSamplerParameterf(samplerName.get(0), GL_TEXTURE_MIN_LOD, -1000.f);
        gl4.glSamplerParameterf(samplerName.get(0), GL_TEXTURE_MAX_LOD, 1000.f);
        gl4.glSamplerParameterf(samplerName.get(0), GL_TEXTURE_LOD_BIAS, 0.0f);
        gl4.glSamplerParameteri(samplerName.get(0), GL_TEXTURE_COMPARE_MODE, GL_NONE);
        gl4.glSamplerParameteri(samplerName.get(0), GL_TEXTURE_COMPARE_FUNC, GL_LEQUAL);

        gl4.glBindSampler(0, samplerName.get(0));

        BufferUtils.destroyDirectBuffer(borderColor);

        return true;
    }
 

@Override
protected boolean render(GL gl) {

    GL4 gl4 = (GL4) gl;

    gl4.glBindFramebuffer(GL_FRAMEBUFFER, 0);
    gl4.glBindProgramPipeline(pipelineName.get(Pipeline.SPLASH));
    gl4.glActiveTexture(GL_TEXTURE0);
    gl4.glBindVertexArray(vertexArrayName.get(0));
    gl4.glBindTexture(GL_TEXTURE_2D, textureName.get(Texture.DIFFUSE));
    gl4.glBindSampler(0, samplerName.get(0));

    gl4.glDrawArraysInstancedBaseInstance(GL_TRIANGLES, 0, 3, 1, 0);

    return true;
}
 

@Override
protected boolean render(GL gl) {

    GL4 gl4 = (GL4) 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);

    gl4.glViewportIndexedf(0, 0, 0, windowSize.x, windowSize.y);
    gl4.glClearBufferfv(GL_COLOR, 0, clearColor.put(0, 1).put(1, 0.5f).put(2, 0).put(3, 1));

    gl4.glUseProgram(programName);
    gl4.glUniformMatrix4fv(uniformMvp, 1, false, mvp.toFa_(), 0);
    gl4.glUniform1i(uniformDiffuse, 0);

    gl4.glActiveTexture(GL_TEXTURE0);
    gl4.glBindTexture(GL_TEXTURE_2D, textureName.get(0));
    gl4.glBindSampler(0, samplerName.get(0));

    gl4.glBindVertexArray(vertexArrayName.get(0));
    gl4.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, bufferName.get(Buffer.ELEMENT));
    gl4.glDrawElementsInstancedBaseVertex(GL_TRIANGLES, elementCount, GL_UNSIGNED_SHORT, 0, 1, 0);

    return true;
}
 

@Override
protected boolean render(GL gl) {

    GL4 gl4 = (GL4) gl;

    gl4.glViewportIndexedf(0, 0, 0, windowSize.x, windowSize.y);

    gl4.glBindVertexArray(vertexArrayName.get(0));
    gl4.glBindSampler(0, samplerName.get(0));

    // Render
    gl4.glBindFramebuffer(GL_FRAMEBUFFER, framebufferName.get(0));
    gl4.glClearBufferfv(GL_COLOR, 0, new float[]{1.0f, 0.5f, 0.0f, 1.0f}, 0);

    gl4.glBindProgramPipeline(pipelineName.get(Pipeline.RENDER));
    gl4.glActiveTexture(GL_TEXTURE0);
    gl4.glBindTexture(GL_TEXTURE_2D, textureName.get(Texture.DIFFUSE));
    gl4.glBindImageTexture(Semantic.Image.DIFFUSE, textureName.get(Texture.COLORBUFFER), 0, false, 0, GL_WRITE_ONLY,
            GL_RGBA8);

    gl4.glDrawArraysInstancedBaseInstance(GL_TRIANGLES, 0, 3, 1, 0);

    // Splash
    gl4.glBindFramebuffer(GL_FRAMEBUFFER, 0);

    gl4.glBindProgramPipeline(pipelineName.get(Pipeline.SPLASH));
    gl4.glActiveTexture(GL_TEXTURE0);
    gl4.glBindTexture(GL_TEXTURE_2D, textureName.get(Texture.COLORBUFFER));

    gl4.glDrawArraysInstancedBaseInstance(GL_TRIANGLES, 0, 3, 1, 0);

    return true;
}
 

@Override
protected boolean render(GL gl) {

    GL4 gl4 = (GL4) 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);

    gl4.glViewport(0, 0, windowSize.x, windowSize.y);
    gl4.glClearBufferfv(GL_COLOR, 0, clearColor.put(0, 1).put(1, 0.5f).put(2, 0).put(3, 1));

    gl4.glUseProgram(programName);
    gl4.glUniformMatrix4fv(uniformMvp, 1, false, mvp.toFa_(), 0);
    gl4.glUniform1i(uniformDiffuseRGB, 0);
    gl4.glUniform1i(uniformDiffuseBGR, 1);

    gl4.glActiveTexture(GL_TEXTURE0);
    gl4.glBindTexture(GL_TEXTURE_2D, textureName.get(Texture.RGB));
    gl4.glBindSampler(0, samplerName.get(0));

    gl4.glActiveTexture(GL_TEXTURE1);
    gl4.glBindTexture(GL_TEXTURE_2D, textureName.get(Texture.BGR));
    gl4.glBindSampler(1, samplerName.get(0));

    gl4.glBindVertexArray(vertexArrayName.get(0));
    gl4.glDrawElementsInstancedBaseVertex(GL_TRIANGLES, elementCount, GL_UNSIGNED_INT, 0, 1, 0);

    return true;
}
 

@Override
protected boolean render(GL gl) {

    GL4 gl4 = (GL4) gl;

    {
        gl4.glBindBuffer(GL_UNIFORM_BUFFER, bufferName.get(Buffer.TRANSFORM));
        ByteBuffer pointer = gl4.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);

        projection.mul(viewMat4()).mul(model).toDbb(pointer);

        // Make sure the uniform buffer is uploaded
        gl4.glUnmapBuffer(GL_UNIFORM_BUFFER);
    }

    gl4.glViewportIndexedf(0, 0, 0, windowSize.x, windowSize.y);
    gl4.glClearBufferfv(GL_COLOR, 0, clearColor.put(0, 1.0f).put(1, 1.0f).put(2, 1.0f).put(3, 1.0f));

    gl4.glUseProgram(programName);

    gl4.glActiveTexture(GL_TEXTURE0);
    gl4.glBindTexture(GL_TEXTURE_2D_ARRAY, textureName.get(0));
    gl4.glBindSampler(0, samplerName.get(0));
    gl4.glBindBufferBase(GL_UNIFORM_BUFFER, Semantic.Uniform.TRANSFORM0, bufferName.get(Buffer.TRANSFORM));

    gl4.glBindVertexArray(vertexArrayName.get(0));
    gl4.glDrawArraysInstancedBaseInstance(GL_TRIANGLES, 0, vertexCount, 15, 0);

    return true;
}
 

@Override
protected boolean render(GL gl) {

    GL4 gl4 = (GL4) gl;

    {
        gl4.glBindBuffer(GL_UNIFORM_BUFFER, bufferName.get(Buffer.TRANSFORM));
        ByteBuffer pointer = gl4.glMapBufferRange(
                GL_UNIFORM_BUFFER, 0, Transform.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, 1000.0f);
        Mat4 view = viewMat4();
        Mat4 model = new Mat4(1.0f);
        Mat4 mvp = projection.mul(view).mul(model);
        Mat4 mv = view.mul(model);

        Transform transform = new Transform(mvp, mv, new Vec3(0.0f, 0.0f, -cameraDistance()));

        transform.toDbb(pointer);

        // Make sure the uniform buffer is uploaded
        gl4.glUnmapBuffer(GL_UNIFORM_BUFFER);
    }

    gl4.glViewportIndexedf(0, 0, 0, windowSize.x, windowSize.y);
    gl4.glClearBufferfv(GL_COLOR, 0, clearColor.put(0, 1.0f).put(1, 1.0f).put(2, 1.0f).put(3, 1.0f));

    gl4.glBindProgramPipeline(pipelineName.get(0));
    gl4.glActiveTexture(GL_TEXTURE0);
    gl4.glBindTexture(GL_TEXTURE_CUBE_MAP_ARRAY, textureName.get(0));
    gl4.glBindSampler(0, samplerName.get(0));
    gl4.glBindBufferBase(GL_UNIFORM_BUFFER, Semantic.Uniform.TRANSFORM0, bufferName.get(Buffer.TRANSFORM));

    gl4.glBindVertexArray(vertexArrayName.get(0));
    gl4.glDrawArraysInstancedBaseInstance(GL_TRIANGLES, 0, vertexCount, 1, 0);

    return true;
}
 

@Override
protected boolean render(GL gl) {

    GL4 gl4 = (GL4) gl;

    // Bind shared objects
    gl4.glViewportIndexedf(0, 0, 0, windowSize.x, windowSize.y);
    gl4.glBindSampler(0, samplerName.get(0));
    gl4.glBindVertexArray(vertexArrayName.get(0));

    // Update a colorbuffer bound as a framebuffer attachement and as a texture
    gl4.glBindFramebuffer(GL_FRAMEBUFFER, framebufferName.get(0));
    gl4.glBindProgramPipeline(pipelineName.get(Pipeline.UPDATE));

    gl4.glActiveTexture(GL_TEXTURE0);
    gl4.glBindTexture(GL_TEXTURE_2D, frameIndex != 0 ? textureName.get(Texture.COLORBUFFER)
            : textureName.get(Texture.DIFFUSE));

    gl4.glMemoryBarrier(GL_TEXTURE_UPDATE_BARRIER_BIT | GL_TEXTURE_FETCH_BARRIER_BIT);
    gl4.glDrawArraysInstancedBaseInstance(GL_TRIANGLES, 0, vertexCount, 1, 0);

    // Blit to framebuffer
    gl4.glBindFramebuffer(GL_FRAMEBUFFER, 0);
    gl4.glBindProgramPipeline(pipelineName.get(Pipeline.BLIT));

    gl4.glActiveTexture(GL_TEXTURE0);
    gl4.glBindTexture(GL_TEXTURE_2D, textureName.get(Texture.COLORBUFFER));

    gl4.glMemoryBarrier(GL_TEXTURE_UPDATE_BARRIER_BIT);
    gl4.glDrawArraysInstancedBaseInstance(GL_TRIANGLES, 0, vertexCount, 1, 0);

    frameIndex = (frameIndex + 1) % 256;

    return true;
}
 

@Override
protected boolean render(GL gl) {

    GL4 gl4 = (GL4) gl;

    diffuseIndex++;

    {
        gl4.glBindBuffer(GL_UNIFORM_BUFFER, bufferName.get(Buffer.TRANSFORM));
        ByteBuffer pointer = gl4.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_());

        gl4.glUnmapBuffer(GL_UNIFORM_BUFFER);
    }

    gl4.glViewport(0, 0, windowSize.x, windowSize.y);
    gl4.glClearBufferfv(GL_COLOR, 0, clearColor.put(0, 1).put(1, 0.5f).put(2, 0).put(3, 1));

    gl4.glUseProgram(programName);
    gl4.glUniform1ui(uniformDiffuseIndex, (diffuseIndex / 100) % 2);

    gl4.glBindBufferBase(GL_UNIFORM_BUFFER, Semantic.Uniform.TRANSFORM0, bufferName.get(Buffer.TRANSFORM));

    gl4.glActiveTexture(GL_TEXTURE0);
    gl4.glBindTexture(GL_TEXTURE_2D_ARRAY, textureName.get(Texture.RGB));
    gl4.glBindSampler(0, samplerName.get(0));

    gl4.glActiveTexture(GL_TEXTURE1);
    gl4.glBindTexture(GL_TEXTURE_2D_ARRAY, textureName.get(Texture.BGR));
    gl4.glBindSampler(1, samplerName.get(0));

    gl4.glBindVertexArray(vertexArrayName.get(0));
    gl4.glDrawElementsInstancedBaseVertex(GL_TRIANGLES, elementCount, GL_UNSIGNED_INT, 0, 2, 0);

    return true;
}
 

@Override
protected boolean render(GL gl) {

    GL4 gl4 = (GL4) gl;

    {
        gl4.glBindBuffer(GL_UNIFORM_BUFFER, bufferName.get(Buffer.TRANSFORM));
        ByteBuffer pointer = gl4.glMapBufferRange(
                GL_UNIFORM_BUFFER, 0, Transform.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, 1000.0f);
        Mat4 view = viewMat4();
        Mat4 model = new Mat4(1.0f);
        Mat4 mvp = projection.mul(view).mul(model);
        Mat4 mv = view.mul(model);

        Transform transform = new Transform(mvp, mv, new Vec3(0.0f, 0.0f, -cameraDistance()));

        mvp.toDbb(pointer, 0);
        mv.toDbb(pointer, Mat4.SIZE);
        transform.camera.toDbb(pointer, Mat4.SIZE * 2);

        // Make sure the uniform buffer is uploaded
        gl4.glUnmapBuffer(GL_UNIFORM_BUFFER);
    }

    gl4.glViewport(0, 0, windowSize.x, windowSize.y);
    gl4.glClearBufferfv(GL_COLOR, 0, clearColor.put(0, 1).put(1, 1).put(2, 1).put(3, 1));

    gl4.glUseProgram(programName);
    gl4.glActiveTexture(GL_TEXTURE0);
    gl4.glBindTexture(GL_TEXTURE_CUBE_MAP_ARRAY, textureName.get(0));
    gl4.glBindSampler(0, samplerName.get(0));
    gl4.glBindBufferBase(GL_UNIFORM_BUFFER, Semantic.Uniform.TRANSFORM0, bufferName.get(Buffer.TRANSFORM));
    gl4.glBindVertexArray(vertexArrayName.get(0));

    gl4.glDrawArraysInstanced(GL_TRIANGLES, 0, vertexCount, 1);

    return true;
}
 

@Override
protected boolean render(GL gl) {

    GL4 gl4 = (GL4) gl;

    Mat4 projection = glm.ortho_(-1.0f, 1.0f, 1.0f, -1.0f, 1.0f, -1.0f);
    Mat4 view = new Mat4(1.0f);
    Mat4 model = new Mat4(1.0f);
    Mat4 mvp = projection.mul(view).mul(model);

    gl4.glViewport(0, 0, windowSize.x, windowSize.y);
    gl4.glClearBufferfv(GL_COLOR, 0, clearColor.put(0, 0).put(1, 0).put(2, 0).put(3, 0));

    // Pass 1
    {
        gl4.glBindFramebuffer(GL_FRAMEBUFFER, framebufferName.get(0));
        gl4.glViewport(0, 0, windowSize.x / FRAMEBUFFER_SIZE, windowSize.y / FRAMEBUFFER_SIZE);

        gl4.glUseProgram(programName[Program.LAYERING]);
        gl4.glUniformMatrix4fv(uniformMvp, 1, false, mvp.toFa_(), 0);

        gl4.glBindVertexArray(vertexArrayName.get(Program.LAYERING));
        gl4.glDrawElementsInstancedBaseVertex(GL_TRIANGLES, elementCount, GL_UNSIGNED_SHORT, 0, 1, 0);
    }

    // Pass 2
    {
        gl4.glBindFramebuffer(GL_FRAMEBUFFER, 0);

        gl4.glUseProgram(programName[Program.IMAGE_2D]);
        gl4.glUniform1i(uniformDiffuse, 0);

        gl4.glActiveTexture(GL_TEXTURE0);
        gl4.glBindTexture(GL_TEXTURE_2D_ARRAY, textureColorbufferName.get(0));
        gl4.glBindSampler(0, samplerName.get(0));

        gl4.glBindVertexArray(vertexArrayName.get(Program.IMAGE_2D));

        for (int i = 0; i < 4; ++i) {
            gl4.glUniform1i(uniformLayer, i);
            gl4.glViewport(viewport[i].x, viewport[i].y, viewport[i].z, viewport[i].w);
            gl4.glDrawElementsInstancedBaseVertex(GL_TRIANGLES, elementCount, GL_UNSIGNED_SHORT, 0, 1, 0);
        }
    }

    return true;
}
 

@Override
protected boolean render(GL gl) {

    GL4 gl4 = (GL4) gl;

    {
        gl4.glBindBuffer(GL_UNIFORM_BUFFER, bufferName.get(Buffer.TRANSFORM));
        ByteBuffer pointer = gl4.glMapBufferRange(
                GL_UNIFORM_BUFFER, 0, Mat4.SIZE,
                GL_MAP_WRITE_BIT | GL_MAP_INVALIDATE_BUFFER_BIT | GL_MAP_UNSYNCHRONIZED_BIT);

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

        projection.mul(viewMat4()).mul(model).toDbb(pointer);

        // Make sure the uniform buffer is uploaded
        gl4.glUnmapBuffer(GL_UNIFORM_BUFFER);
    }

    // Clear the color buffer
    gl4.glClearBufferfv(GL_COLOR, 0, clearColor.put(0, 1.0f).put(1, 0.5f).put(2, 0.0f).put(3, 1.0f));

    // Bind rendering objects
    gl4.glBindProgramPipeline(pipelineName.get(0));
    gl4.glBindBufferBase(GL_UNIFORM_BUFFER, Semantic.Uniform.TRANSFORM0, bufferName.get(Buffer.TRANSFORM));
    gl4.glBindSampler(0, samplerName.get(0));
    gl4.glBindVertexArray(vertexArrayName.get(0));

    // Draw each texture in different viewports
    for (int index = 0; index < Texture.MAX; ++index) {
        gl4.glViewportIndexedfv(0, viewport[index].toDfb(viewportBuffer));

        gl4.glActiveTexture(GL_TEXTURE0);
        gl4.glBindTexture(GL_TEXTURE_2D, textureName.get(index));

        gl4.glDrawElementsInstancedBaseVertexBaseInstance(GL_TRIANGLES, elementCount, GL_UNSIGNED_SHORT, 0, 1, 0, 0);
    }

    return true;
}
 

@Override
protected boolean render(GL gl) {

    GL4 gl4 = (GL4) gl;

    {
        gl4.glBindBuffer(GL_UNIFORM_BUFFER, bufferName[Buffer.TRANSFORM]);
        ByteBuffer pointer = gl4.glMapBufferRange(GL_UNIFORM_BUFFER, 0, Mat4.SIZE,
                GL_MAP_WRITE_BIT | GL_MAP_INVALIDATE_BUFFER_BIT);

        Mat4 projection = glm.perspectiveFov_((float) Math.PI * 0.25f, windowSize.x, windowSize.y, 0.1f, 100.0f);
        Mat4 model = new Mat4(1.0f);
        pointer.asFloatBuffer().put(projection.mul(viewMat4()).mul(model).toFa_());

        gl4.glUnmapBuffer(GL_UNIFORM_BUFFER);
    }

    // Render
    FloatBuffer clearBuffer = GLBuffers.newDirectFloatBuffer(new float[]{1.0f, 0.5f, 0.0f, 1.0f});
    gl4.glClearTexImage(textureName[Texture.COLORBUFFER], 0, GL_RGBA, GL_FLOAT, clearBuffer);
    BufferUtils.destroyDirectBuffer(clearBuffer);

    gl4.glViewportIndexedf(0, 0, 0, windowSize.x * supersampling, windowSize.y * supersampling);
    gl4.glBindFramebuffer(GL_FRAMEBUFFER, framebufferName[0]);
    gl4.glBindSampler(0, samplerName[Pipeline.RENDER]);
    gl4.glBindVertexArray(vertexArrayName[Pipeline.RENDER]);

    gl4.glBindProgramPipeline(pipelineName[Pipeline.RENDER]);
    gl4.glActiveTexture(GL_TEXTURE0);
    gl4.glBindTexture(GL_TEXTURE_2D, textureName[Texture.DIFFUSE]);
    gl4.glBindImageTexture(Semantic.Image.DIFFUSE, textureName[Texture.COLORBUFFER], 0, false, 0, GL_WRITE_ONLY,
            GL_RGBA8);
    gl4.glBindBufferBase(GL_UNIFORM_BUFFER, Semantic.Uniform.TRANSFORM0, bufferName[Buffer.TRANSFORM]);
    gl4.glBindBufferBase(GL_SHADER_STORAGE_BUFFER, Semantic.Storage.VERTEX, bufferName[Buffer.VERTEX]);

    gl4.glDrawElementsInstancedBaseVertexBaseInstance(GL_TRIANGLES, elementCount, GL_UNSIGNED_SHORT, 0, 1, 0, 0);

    // Splash
    gl4.glViewportIndexedf(0, 0, 0, windowSize.x, windowSize.y);
    gl4.glBindFramebuffer(GL_FRAMEBUFFER, 0);
    gl4.glBindSampler(0, samplerName[Pipeline.SPLASH]);
    gl4.glBindVertexArray(vertexArrayName[Pipeline.SPLASH]);

    gl4.glBindProgramPipeline(pipelineName[Pipeline.SPLASH]);
    gl4.glActiveTexture(GL_TEXTURE0);
    gl4.glBindTexture(GL_TEXTURE_2D, textureName[Texture.COLORBUFFER]);

    gl4.glDrawArraysInstancedBaseInstance(GL_TRIANGLES, 0, 3, 1, 0);

    return true;
}
 

@Override
protected boolean render(GL gl) {

    GL4 gl4 = (GL4) gl;

    Mat4 projection = glm.ortho_(-1.0f, 1.0f, 1.0f, -1.0f, 1.0f, -1.0f);
    Mat4 view = new Mat4(1.0f);
    Mat4 model = new Mat4(1.0f);
    Mat4 mvp = projection.mul(view).mul(model);

    gl4.glProgramUniformMatrix4fv(programName[Program.LAYERING], uniformMvp[Program.LAYERING], 1, false,
            mvp.toFa_(), 0);
    gl4.glProgramUniformMatrix4fv(programName[Program.VIEWPORT], uniformMvp[Program.VIEWPORT], 1, false,
            mvp.toFa_(), 0);
    gl4.glProgramUniform1i(programName[Program.VIEWPORT], uniformDiffuse, 0);

    // Pass 1
    {
        gl4.glBindFramebuffer(GL_FRAMEBUFFER, framebufferName.get(0));
        gl4.glViewportIndexedfv(0, viewportBuffer.put(0, 0).put(1, 0).put(2, FRAMEBUFFER_SIZE.x).put(3, FRAMEBUFFER_SIZE.y));

        gl4.glUseProgram(programName[Program.LAYERING]);

        gl4.glBindVertexArray(vertexArrayName.get(Program.LAYERING));
        gl4.glDrawElementsInstancedBaseVertex(GL_TRIANGLES, elementCount, GL_UNSIGNED_SHORT, 0, 1, 0);
    }

    // Pass 2
    {
        int border = 2;

        gl4.glBindFramebuffer(GL_FRAMEBUFFER, 0);

        gl4.glClearBufferfv(GL_COLOR, 0, clearColor.put(0, 0).put(1, 0).put(2, 0).put(3, 0));

        gl4.glViewportIndexedfv(0, viewportBuffer.put(0, border).put(1, border).put(2, windowSize.x * 0.5f - 2.0f * border)
                .put(3, windowSize.y * 0.5f - 2.0f * border));
        gl4.glViewportIndexedfv(1, viewportBuffer.put(0, windowSize.x * 0.5f + border).put(1, border)
                .put(2, windowSize.x * 0.5f - 2.0f * border).put(3, windowSize.y * 0.5f - 2.0f * border));
        gl4.glViewportIndexedfv(2, viewportBuffer.put(0, windowSize.x * 0.5f + border).put(1, windowSize.y * 0.5f + 1)
                .put(2, windowSize.x * 0.5f - 2.0f * border).put(3, windowSize.y * 0.5f - 2.0f * border));
        gl4.glViewportIndexedfv(3, viewportBuffer.put(0, border).put(1, windowSize.y * 0.5f + border)
                .put(2, windowSize.x * 0.5f - 2.0f * border).put(3, windowSize.y * 0.5f - 2.0f * border));

        gl4.glUseProgram(programName[Program.VIEWPORT]);

        gl4.glActiveTexture(GL_TEXTURE0);
        gl4.glBindTexture(GL_TEXTURE_2D_ARRAY, textureName.get(0));
        gl4.glBindSampler(0, samplerName.get(0));

        gl4.glBindVertexArray(vertexArrayName.get(Program.VIEWPORT));
        gl4.glDrawElementsInstancedBaseVertex(GL_TRIANGLES, elementCount, GL_UNSIGNED_SHORT, 0, 1, 0);
    }

    return true;
}