void intro_do( long time )
{
//--- update parameters -----------------------------------------
const float t = 0.001f*(float)time;
// camera position
fparams[ 0] = 2.0f;
fparams[ 1] = 0.0f;
fparams[ 2] = 2.0f;
// camera target
fparams[ 4] = 0.0f;
fparams[ 5] = 0.0f;
fparams[ 6] = 0.0f;
// sphere
fparams[ 8] = 0.0f;
fparams[ 9] = 0.0f;
fparams[10] = 0.0f;
fparams[11] = 1.0f;
/*
// Gen renderbuffer
glGenRenderbuffersEXT(1, &frontb);
// Bind renderbuffer
glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, frontb);
// Init as a depth buffer
glRenderbufferStorageEXT( GL_RENDERBUFFER_EXT, GL_DEPTH_COMPONENT24, XRES, YRES);
// Attach to the FBO for depth
glFramebufferRenderbufferEXT( GL_FRAMEBUFFER_EXT, GL_DEPTH_ATTACHMENT_EXT, GL_RENDERBUFFER_EXT, frontb);
glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);
glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, 0);*/
//--- render -----------------------------------------
static float reso[4];
reso[0] = XRES;
reso[1] = YRES;
reso[2] = XRES;
reso[3] = YRES;
oglUseProgram( pid );
glUniform1fARB( oglGetUniformLocation( pid, "iGlobalTime" ), t );
oglUniform4fv( oglGetUniformLocation( pid, "iResolution" ), 1, reso );
oglUniform4fv( oglGetUniformLocation( pid, "fpar" ), 4, fparams );
glRects( -1, -1, 1, 1 );
glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);
glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, 0);
}
void Attribute::bindAsUniform( int index )
{
switch( numComponents() )
{
case 1:
if( elementComponentType() == GL_FLOAT )
{
//printf("setting uniform tmp: %f at uniform location %i\n", *((float *)getRawPointer()), index );
oglUniform1fv( index, numElements(), (float *)getRawPointer());
}
else if( elementComponentType() == GL_INT )
{
oglUniform1iv( index, numElements(), (int*)getRawPointer());
}else if( elementComponentType() == ATTR_TYPE_SAMPLER )
{
// get gl textureid
unsigned int t = (unsigned int) (*(int*)getRawPointer());
// bind texture to given texture unit (index)
oglActiveTexture(GL_TEXTURE0+index);
glBindTexture(GL_TEXTURE_2D, t);
// now set the sampler uniform to point to the textureunit
int tt = index; // for now texture unit == unfiform location
// this will be bad with higher number of uniforms in shader
// need more clever texture unit management
oglUniform1iv( index, 1, &tt);
}
break;
case 2:
if( elementComponentType() == GL_FLOAT )
oglUniform2fv( index, numElements(), (float *)getRawPointer());
break;
case 3:
if( elementComponentType() == GL_FLOAT )
oglUniform3fv( index, numElements(), (float *)getRawPointer());
break;
case 4:
if( elementComponentType() == GL_FLOAT )
oglUniform4fv( index, numElements(), (float *)getRawPointer());
break;
case 9:
oglUniformMatrix3fv( index, numElements(), false, (float *)getRawPointer() );
break;
case 16:
oglUniformMatrix4fv( index, numElements(), false, (float *)getRawPointer() );
break;
};
}
