[osg-users] Why is it that no matter what The model material properties value reset the are Always invalid?

[Mirro Xu]

mirro wrote:
> Hi,
>     
> //There seems to be a texture coordinate error...
>  
> 
> Code:
> 
> _eftManager->getPassStateSet(pid)->setAttributeAndModes(loadProgram(
> 			"varying vec3 vLocalVertex;\n"
> 			"varying vec4 TextureCoord0;\n"
> 
> 			"void main()\n"
> 			"{\n"
> 			"   vLocalVertex  = gl_Vertex;\n"
> 			"   TextureCoord0 = gl_TextureMatrix[0] * gl_MultiTexCoord0;\n"
> 			"   gl_Position   = ftransform();\n"
> 			"}\n"
> 			"\n"
> 			,
> 			"uniform sampler2D default_map;\n"
> 			"varying vec4   TextureCoord0;\n"
> 			"varying vec3   vLocalVertex;\n"
> 			"uniform float  hdrExposure;\n"
> 			"uniform float  hdrGamma;\n"
> 
> 			"vec3 decodeRGBE(vec4 rgba) \n"
> 			"{ \n"
> 			"   float f = pow(2.0, rgba.a * 255.0 - (128.0 + 8.0)); \n"
> 			"	return rgba.rgb * 255.0 * f; \n"
> 			"} \n"
> 
> 			"vec3 toneMapHDR(vec3 rgb) \n"
> 			"{ \n"
> 			"	 return pow(rgb * 1.0, 1.0 / vec3(2.2));\n"
> 			"} \n"
> 
> 			"vec4 textureSphere(sampler2D texture,vec3 n) \n"
> 			"{ \n"
> 			"	 const float PI =  3.14159;\n"
> 			"	 float yaw = acos(n.y) / PI;\n"
> 			"	 float pitch = (atan(n.x, n.z) + PI) / (2.0 * PI);\n"
> 			"	 return texture2D(texture, vec2(pitch, yaw));\n"
> 			"} \n"
> 
> 			"void main()\n"
> 			"{\n"
> 			"		vec3 normal = normalize(vLocalVertex.xyz);\n"
> 			"		vec3 c = toneMapHDR(decodeRGBE(textureSphere(default_map, normal)));\n"
> 			"	    gl_FragColor = vec4(c, 1.0);\n"
> 			"}\n"
> 			"\n"
> 		), osg::StateAttribute::ON | osg::StateAttribute::OVERRIDE);
> 
> 
> 
> 
> Thank you!
> 
> Cheers,
> Mirro


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http://forum.openscenegraph.org/viewtopic.php?p=76870#76870