gpuCache/gpuCacheRasterSelect.h

gpuCache/gpuCacheRasterSelect.h
#ifndef _gpuCacheRasterSelect_h_
#define _gpuCacheRasterSelect_h_
//-
//**************************************************************************/
// Copyright 2015 Autodesk, Inc. All rights reserved.
//
// Use of this software is subject to the terms of the Autodesk
// license agreement provided at the time of installation or download,
// or which otherwise accompanies this software in either electronic
// or hard copy form.
//**************************************************************************/
//+
#include "gpuCacheSelect.h"
#include <maya/MSelectInfo.h>
namespace GPUCache {
/*==============================================================================
* CLASS RasterSelect
*============================================================================*/
// Rasterization based slection
class RasterSelect : public Select
{
public:
typedef unsigned int index_t;
// Description:
// Begin a rasterization-based selection.
//
// Until the call to end(), the user uses the calls
// processVertices(), processEdges() and processVertices() to
// specify the geometry to test for selection hits. The
// selection will performed by reading-back the rasterized
// primitives.
//
// The selection region is defined by selectInfo.selectRect().
//
// Notes:
// On some hardware, rasterization-based selection can be up to a
// 100 times faster than selection based on OpenGL picking (such
// as M3dView::begin/endSelect()) when applied to large meshes.
//
// When using rasterization-based selection, the user should not
// change any OpenGL state that would affect the color of the
// generated fragments. This includes:
// - Current color
// - Alpha-Blending
// - Shading
// - Lighting
// - Texturing
// - Etc.
RasterSelect(MSelectInfo& selectInfo);
~RasterSelect() override;
// Base class virtual overrides */
void processEdges(const SubNode::Ptr rootNode,
double seconds,
size_t numWires,
VBOProxy::VBOMode vboMode) override;
void processTriangles(const SubNode::Ptr rootNode,
double seconds,
size_t numTriangles,
VBOProxy::VBOMode vboMode) override;
void processBoundingBox(const SubNode::Ptr rootNode,
double seconds) override;
void end() override;
bool isSelected() const override;
float minZ() const override;
private:
MSelectInfo fSelectInfo;
float fMinZ;
GLboolean fWasDepthTestEnabled;
};
}
#endif