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From Pavel Moloshtan, add support to osg::Texture files for GL_ARB_shadow_ambinet support

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This commit is contained in:
Robert Osfield
2004-01-29 11:16:49 +00:00
parent 7a94ab3903
commit 475c583975
3 changed files with 37 additions and 7 deletions
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14
include/osg/Texture
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@@ -82,6 +82,9 @@
#define GL_COMPARE_R_TO_TEXTURE_ARB 0x884E
#endif
#ifndef TEXTURE_COMPARE_FAIL_VALUE_ARB
#define TEXTURE_COMPARE_FAIL_VALUE_ARB 0x80BF
#endif
namespace osg {
@@ -91,7 +94,6 @@ class SG_EXPORT Texture : public osg::StateAttribute
public :
Texture();
/** Copy constructor using CopyOp to manage deep vs shallow copy.*/
@@ -266,7 +268,10 @@ class SG_EXPORT Texture : public osg::StateAttribute
void setShadowTextureMode(ShadowTextureMode mode) { _shadow_texture_mode = mode; }
ShadowTextureMode getShadowTextureMode() { return _shadow_texture_mode; }
// set value of TEXTURE_COMPARE_FAIL_VALUE_ARB texture parameter
// http://oss.sgi.com/projects/ogl-sample/registry/ARB/shadow_ambient.txt
void setShadowAmbient(float shadow_ambient) { _shadow_ambient = shadow_ambient; }
float getShadowAmbient() { return _shadow_ambient; }
/** Texture is pure virtual base class, apply must be overriden. */
virtual void apply(State& state) const = 0;
@@ -315,6 +320,9 @@ class SG_EXPORT Texture : public osg::StateAttribute
void setShadowSupported(bool flag) { _isShadowSupported = flag; }
bool isShadowSupported() const { return _isShadowSupported; }
void setShadowAmbientSupported(bool flag) { _isShadowAmbientSupported = flag; }
bool isShadowAmbientSupported() const { return _isShadowAmbientSupported; }
void setMaxTextureSize(GLint maxsize) { _maxTextureSize=maxsize; }
GLint maxTextureSize() const { return _maxTextureSize; }
@@ -342,6 +350,7 @@ class SG_EXPORT Texture : public osg::StateAttribute
bool _isTextureBorderClampSupported;
bool _isGenerateMipMapSupported;
bool _isShadowSupported;
bool _isShadowAmbientSupported;
GLint _maxTextureSize;
@@ -415,6 +424,7 @@ class SG_EXPORT Texture : public osg::StateAttribute
bool _use_shadow_comparison;
ShadowCompareFunc _shadow_compare_func;
ShadowTextureMode _shadow_texture_mode;
float _shadow_ambient;
public: