Hi,
You just need load some two textures here is the code
osg::Program* program = new osg::Program;
geometry->getOrCreateStateSet()->setAttribute(program);
char vertexShaderSource[] =
"varying vec2 texcoord;\n"
"\n"
"void main(void)\n"
"{\n"
" gl_Position = ftransform();\n"
" texcoord = gl_MultiTexCoord0.xy;\n"
"}\n";
char fragmentShaderSource[] =
"uniform sampler2D baseTexture; \n"
"varying vec2 texcoord;\n"
"\n"
"void main(void) \n"
"{\n"
" vec4 CHROMA_KEY =
vec4(1.0,1.0,1.0,0.1);\n"
" vec4 color = texture2D( baseTexture,
texcoord); \n"
" // ARUNA ROX I DID IT hahahaaaaa. THE
BACKGROUND IN THE VIDEO IS NOT THAT COLOR\n"
" if (color.y > 0.5)\n"
" discard;\n"
" gl_FragColor = color; \n"
"}\n";
program->addShader(new osg::Shader(osg::Shader::VERTEX,
vertexShaderSource));
program->addShader(new osg::Shader(osg::Shader::FRAGMENT,
fragmentShaderSource));
here geometry is osg::Geometry pointer to which relative to the vedio
Thank you!
Cheers,
Aruna
------------------
Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=33161#33161
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