FGFS-4.1/OpenSceneGraph
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Addeed support for GLES shaders

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This commit is contained in:
Robert Osfield 2017-05-08 12:27:07 +01:00
parent 3dc3dd3bd6
commit 8b2f61ec2a
1 changed files with 31 additions and 5 deletions
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36
examples/osgmovie/osgmovie.cpp
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@ -469,23 +469,46 @@ int main(int argc, char** argv)
{
//useTextureRectangle = false;
static const char *shaderSourceTextureRec = {
"uniform vec4 cutoff_color;\n"
"uniform samplerRect movie_texture;\n"
static const char *shaderSourceTextureVertex = {
"#ifdef GL_ES\n"
" precision highp float;\n"
" precision highp int;\n"
"#endif\n"
"varying vec4 texcoord;\n"
"void main(void)\n"
"{\n"
" vec4 texture_color = textureRect(movie_texture, gl_TexCoord[0].st); \n"
" texcoord = gl_MultiTexCoord0; \n"
" gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex;\n"
"}\n"
};
static const char *shaderSourceTextureRec = {
"#ifdef GL_ES\n"
" precision highp float;\n"
" precision highp int;\n"
"#endif\n"
"uniform vec4 cutoff_color;\n"
"uniform samplerRect movie_texture;\n"
"varying vec4 texcoord;\n"
"void main(void)\n"
"{\n"
" vec4 texture_color = textureRect(movie_texture, texcoord.st); \n"
" if (all(lessThanEqual(texture_color,cutoff_color))) discard; \n"
" gl_FragColor = texture_color;\n"
"}\n"
};
static const char *shaderSourceTexture2D = {
"#ifdef GL_ES\n"
" precision highp float;\n"
" precision highp int;\n"
"#endif\n"
"uniform vec4 cutoff_color;\n"
"uniform sampler2D movie_texture;\n"
"varying vec4 texcoord;\n"
"void main(void)\n"
"{\n"
" vec4 texture_color = texture2D(movie_texture, gl_TexCoord[0].st); \n"
" vec4 texture_color = texture2D(movie_texture, texcoord.st); \n"
" if (all(lessThanEqual(texture_color,cutoff_color))) discard; \n"
" gl_FragColor = texture_color;\n"
"}\n"
@ -493,6 +516,9 @@ int main(int argc, char** argv)
osg::Program* program = new osg::Program;
program->addShader(new osg::Shader(osg::Shader::VERTEX, shaderSourceTextureVertex));
program->addShader(new osg::Shader(osg::Shader::FRAGMENT,
useTextureRectangle ? shaderSourceTextureRec : shaderSourceTexture2D));