/**
* Binds the buffer object buffer to the binding point at index index of the array of targets
* specified by target. Each target represents an indexed array of buffer binding points, as well
* as a single general binding point that can be used by other buffer manipulation functions such
* as glBindBuffer or glMapBuffer. In addition to binding buffer to the indexed buffer binding
* target, glBindBufferBase also binds buffer to the generic buffer binding point specified by
* target.
*
* @param theTarget
* @param theIndex
*/
public void bindBufferBase(GLBufferTarget theTarget, int theIndex) {
switch (theTarget) {
case ATOMIC_COUNTER:
case TRANSFORM_FEEDBACK:
case UNIFORM:
case SHADER_STORAGE:
break;
default:
throw new GLException("Unsupported target for bindBufferBase");
}
bind();
GL4 gl = GLGraphics.currentGL();
gl.glBindBufferBase(theTarget.glID, theIndex, _myID);
unbind();
}
@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.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_());
// 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, new float[] {1.0f, 0.5f, 0.0f, 1.0f}, 0);
gl4.glBindProgramPipeline(pipelineName.get(0));
gl4.glActiveTexture(GL_TEXTURE0);
gl4.glBindTexture(GL_TEXTURE_2D_ARRAY, textureName.get(0));
gl4.glBindVertexArray(vertexArrayName.get(0));
gl4.glBindBufferBase(
GL_UNIFORM_BUFFER, Semantic.Uniform.TRANSFORM0, bufferName.get(Buffer.TRANSFORM));
gl4.glDrawElementsInstancedBaseVertexBaseInstance(
GL_TRIANGLES, elementCount, GL_UNSIGNED_SHORT, 0, 1, 0, 0);
return true;
}
