HI,
I am using the the shaders from osgShadow, in case just
"fragmentShaderSource_withBaseTexture"...
"uniform sampler2D baseTexture; \n"
"uniform sampler2DShadow shadowTexture; \n"
"uniform vec2 ambientBias; \n"
"\n"
"void main(void) \n"
"{ \n"
" vec4 color = gl_Color * texture2D( baseTexture,
gl_TexCoord[0].xy ); \n"
" gl_FragColor = color * (ambientBias.x + shadow2DProj(
shadowTexture, gl_TexCoord[1] ) * ambientBias.y); \n"
"}\n"
because I set the textureUnit to only 1. The corresponding code to set
up the fragment program is...
osg::Program* program = new osg::Program;
_stateset->setAttribute(program);
osg::Shader* fragment_shader = new osg::Shader(osg::Shader::FRAGMENT,
fragmentShaderSource_withBaseTexture);
program->addShader(fragment_shader);
osg::Uniform* baseTextureSampler = new osg::Uniform("baseTexture",0);
_stateset->addUniform(baseTextureSampler);
osg::Uniform* shadowTextureSampler = new osg::Uniform("shadowTexture",1);
_stateset->addUniform(shadowTextureSampler);
osg::Uniform* ambientBias = new
osg::Uniform("ambientBias",osg::Vec2(0.3f,1.2f));
_stateset->addUniform(ambientBias);
Is this a mistake?
I only get this Problem when trying to use the shadows with osg 1.2. In
osg 1.9.5 I get no artifact like this.
Thanks for your help,
Marcus
Robert Osfield schrieb:
Hi Marcus,
How are your setting up your shadow mapping? I'd suspect something
might be up the shader, but really have too little info to go to give
a good answer.
Robert.
On 6/5/07, Marcus Fritzen <[EMAIL PROTECTED]> wrote:
Hello,
perhaps someone can help me with a problem I have. Attached is the image
I get when using shadow mapping. At present I don't know where the
artifacts on the ground and the cube came from. I use following settings
for the textures:
setFilter( osg::Texture2D::MIN_FILTER, osg::Texture2D::LINEAR );
setFilter( osg::Texture2D::MAG_FILTER, osg::Texture2D::LINEAR );
setWrap( osg::Texture2D::WRAP_S, osg::Texture2D::CLAMP_TO_EDGE );
setWrap( osg::Texture2D::WRAP_T, osg::Texture2D::CLAMP_TO_EDGE );
setShadowTextureMode( osg::Texture2D::LUMINANCE );
setInternalFormat( GL_DEPTH_COMPONENT );
Greets,
Marcus
--
----------------------------------------------------------------
Marcus Fritzen E-mail: [EMAIL PROTECTED]
University Koblenz
Triererstr. 105, 56072 Koblenz,
HIWI FB4 Herr Jackel
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----------------------------------------------------------------
Marcus Fritzen E-mail: [EMAIL PROTECTED]
University Koblenz Mobil: +491786867360
Triererstr. 105, 56072 Koblenz,
HIWI FB4 Herr Jackel
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