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737e9a8da4
OpenGl_AspectsTextureSet now appends Sprite texture to the end of texture set. OpenGl_Context::init() - fixed usage of GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS on too old GL context. Default sampler names occSampler0, occActiveSampler and occSamplerBaseColor are now excluded from header with common declarations for build-in GLSL programs. OpenGl_ShaderObject::LoadAndCompile() and OpenGl_ShaderProgram::Link() now includes program Id within error log. OpenGl_ShaderManager now supports mapping texture onto point primitive within built-in programs (texture transformation is ignored).
63 lines
2.2 KiB
C++
Executable File
63 lines
2.2 KiB
C++
Executable File
// Created by: Kirill GAVRILOV
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// Copyright (c) 2013-2014 OPEN CASCADE SAS
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//
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// This file is part of Open CASCADE Technology software library.
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//
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// This library is free software; you can redistribute it and/or modify it under
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// the terms of the GNU Lesser General Public License version 2.1 as published
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// by the Free Software Foundation, with special exception defined in the file
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// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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// distribution for complete text of the license and disclaimer of any warranty.
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//
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// Alternatively, this file may be used under the terms of Open CASCADE
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// commercial license or contractual agreement.
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#ifndef _OpenGl_PointSprite_H__
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#define _OpenGl_PointSprite_H__
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#include <OpenGl_Texture.hxx>
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class OpenGl_PointSprite;
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DEFINE_STANDARD_HANDLE(OpenGl_PointSprite, OpenGl_Texture)
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//! Point sprite resource. On modern hardware it will be texture with extra parameters.
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//! On ancient hardware sprites will be drawn using bitmaps.
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class OpenGl_PointSprite : public OpenGl_Texture
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{
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DEFINE_STANDARD_RTTIEXT(OpenGl_PointSprite, OpenGl_Texture)
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public:
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//! Create uninitialized resource.
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Standard_EXPORT OpenGl_PointSprite (const TCollection_AsciiString& theResourceId);
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//! Destroy object.
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Standard_EXPORT virtual ~OpenGl_PointSprite();
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//! Destroy object - will release GPU memory if any.
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Standard_EXPORT virtual void Release (OpenGl_Context* theCtx) Standard_OVERRIDE;
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//! Returns TRUE for point sprite texture.
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virtual bool IsPointSprite() const Standard_OVERRIDE { return true; }
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//! @return true if this is display list bitmap
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inline Standard_Boolean IsDisplayList() const
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{
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return myBitmapList != 0;
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}
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//! Draw sprite using glBitmap.
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//! Please call glRasterPos3fv() before to setup sprite position.
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Standard_EXPORT void DrawBitmap (const Handle(OpenGl_Context)& theCtx) const;
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//! Initialize point sprite as display list
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Standard_EXPORT void SetDisplayList (const Handle(OpenGl_Context)& theCtx,
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const GLuint theBitmapList);
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protected:
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GLuint myBitmapList; //!< if of display list to draw sprite using glBitmap (for backward compatibility)
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};
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#endif // _OpenGl_PointSprite_H__
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