Differential D16414 Diff 57723 source/blender/gpu/opengl/gl_shader.cc

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	bool GLShader::transform_feedback_enable(GPUVertBuf *buf_)			bool GLShader::transform_feedback_enable(GPUVertBuf *buf_)
	{			{
	if (transform_feedback_type_ == GPU_SHADER_TFB_NONE) {			if (transform_feedback_type_ == GPU_SHADER_TFB_NONE) {
	return false;			return false;
	}			}

	GLVertBuf buf = static_cast<GLVertBuf >(unwrap(buf_));			GLVertBuf buf = static_cast<GLVertBuf >(unwrap(buf_));

				if (buf->vbo_id_ == 0) {
				buf->bind();
				}

	BLI_assert(buf->vbo_id_ != 0);			BLI_assert(buf->vbo_id_ != 0);

	glBindBufferBase(GL_TRANSFORM_FEEDBACK_BUFFER, 0, buf->vbo_id_);			glBindBufferBase(GL_TRANSFORM_FEEDBACK_BUFFER, 0, buf->vbo_id_);

	switch (transform_feedback_type_) {			switch (transform_feedback_type_) {
	case GPU_SHADER_TFB_POINTS:			case GPU_SHADER_TFB_POINTS:
	glBeginTransformFeedback(GL_POINTS);			glBeginTransformFeedback(GL_POINTS);
	break;			break;
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