Problems using both single and multitexture
Author
Hello,
I have some big problems using both single and multitexture. For some of my triangles I want to use single texture and for some others I want to use multi.
The problem is that if I want to render objects with tris of both the different types explained above, I get no multitexture. If I only render objects with multitexture tris, it works. If I only render objects with singletexture tris, it works.
What am I doing wrong?
Code:
// Passes
if(passes == 1)
{
glClientActiveTextureARB(GL_TEXTURE0_ARB);
glEnableClientState (GL_TEXTURE_COORD_ARRAY);
glEnableClientState (GL_COLOR_ARRAY);
glColorPointer(4, GL_FLOAT, 0, dInfo->_colors[0]);
glTexCoordPointer(2, GL_FLOAT, 0, dInfo->_uvCoords[0]);
glActiveTextureARB (GL_TEXTURE0_ARB);
if(mat->_textures[0])
{
//glBind... mat->_textures[0]
}
setBlend(mat->_blendModes[0]);
glVertexPointer (3, GL_FLOAT, 0, dInfo->_points);
drawFaces(dInfo);
setBlend(NMaterial::_BLENDMODE_NONE);
}
else if(passes == 2)
{
// Pass 0
glClientActiveTextureARB(GL_TEXTURE0_ARB);
glEnableClientState (GL_TEXTURE_COORD_ARRAY);
glEnableClientState (GL_COLOR_ARRAY);
glColorPointer(4, GL_FLOAT, 0, dInfo->_colors[0]);
glTexCoordPointer(2, GL_FLOAT, 0, dInfo->_uvCoords[0]);
// Pass 0
glActiveTextureARB (GL_TEXTURE0_ARB);
if(mat->_textures[0])
{
//glBind... mat->_textures[0]
}
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_EXT);
glTexEnvf(GL_TEXTURE_ENV, GL_COMBINE_RGB_EXT, GL_MODULATE);
glTexEnvf(GL_TEXTURE_ENV, GL_COMBINE_ALPHA_EXT, GL_MODULATE);
glTexEnvf(GL_TEXTURE_ENV, GL_SOURCE0_RGB_EXT, GL_TEXTURE);
glTexEnvf(GL_TEXTURE_ENV, GL_SOURCE1_RGB_EXT, GL_PREVIOUS_EXT);
glTexEnvf(GL_TEXTURE_ENV, GL_SOURCE2_RGB_EXT, GL_CONSTANT_EXT);
glTexEnvf(GL_TEXTURE_ENV, GL_OPERAND0_RGB_EXT, GL_SRC_COLOR);
glTexEnvf(GL_TEXTURE_ENV, GL_OPERAND1_RGB_EXT, GL_SRC_COLOR);
glTexEnvf(GL_TEXTURE_ENV, GL_OPERAND2_RGB_EXT, GL_SRC_ALPHA);
glTexEnvf(GL_TEXTURE_ENV, GL_SOURCE0_ALPHA_EXT, GL_TEXTURE);
glTexEnvf(GL_TEXTURE_ENV, GL_SOURCE1_ALPHA_EXT, GL_PREVIOUS_EXT);
glTexEnvf(GL_TEXTURE_ENV, GL_OPERAND0_ALPHA_EXT, GL_SRC_ALPHA);
glTexEnvf(GL_TEXTURE_ENV, GL_OPERAND1_ALPHA_EXT, GL_SRC_ALPHA);
glTexEnvf(GL_TEXTURE_ENV, GL_RGB_SCALE_EXT, 1.0f);
glTexEnvf(GL_TEXTURE_ENV, GL_ALPHA_SCALE, 1.0f);
// Pass 1
glClientActiveTextureARB(GL_TEXTURE1_ARB);
glEnableClientState (GL_TEXTURE_COORD_ARRAY);
glEnableClientState (GL_COLOR_ARRAY);
glColorPointer(4, GL_FLOAT, 0, dInfo->_colors[1]);
glTexCoordPointer(2, GL_FLOAT, 0, dInfo->_uvCoords[1]);
// Pass 1
glActiveTextureARB (GL_TEXTURE1_ARB);
if(mat->_textures[1])
{
//glBind... mat->_textures[1]
}
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_EXT);
glTexEnvf(GL_TEXTURE_ENV, GL_COMBINE_RGB_EXT, GL_MODULATE);
glTexEnvf(GL_TEXTURE_ENV, GL_COMBINE_ALPHA_EXT, GL_MODULATE);
glTexEnvf(GL_TEXTURE_ENV, GL_SOURCE0_RGB_EXT, GL_TEXTURE);
glTexEnvf(GL_TEXTURE_ENV, GL_SOURCE1_RGB_EXT, GL_PREVIOUS_EXT);
glTexEnvf(GL_TEXTURE_ENV, GL_SOURCE2_RGB_EXT, GL_CONSTANT_EXT);
glTexEnvf(GL_TEXTURE_ENV, GL_OPERAND0_RGB_EXT, GL_SRC_COLOR);
glTexEnvf(GL_TEXTURE_ENV, GL_OPERAND1_RGB_EXT, GL_SRC_COLOR);
glTexEnvf(GL_TEXTURE_ENV, GL_OPERAND2_RGB_EXT, GL_SRC_ALPHA);
glTexEnvf(GL_TEXTURE_ENV, GL_SOURCE0_ALPHA_EXT, GL_TEXTURE);
glTexEnvf(GL_TEXTURE_ENV, GL_SOURCE1_ALPHA_EXT, GL_PREVIOUS_EXT);
glTexEnvf(GL_TEXTURE_ENV, GL_OPERAND0_ALPHA_EXT, GL_SRC_ALPHA);
glTexEnvf(GL_TEXTURE_ENV, GL_OPERAND1_ALPHA_EXT, GL_SRC_ALPHA);
glTexEnvf(GL_TEXTURE_ENV, GL_RGB_SCALE_EXT, 1.0f);
glTexEnvf(GL_TEXTURE_ENV, GL_ALPHA_SCALE, 1.0f);
// Using same points for both textures
glVertexPointer (3, GL_FLOAT, 0, dInfo->_points);
drawFaces(dInfo);
setBlend(NMaterial::_BLENDMODE_NONE);
}
I don't see anywhere in the code calls to glEnable/glDisable(GL_TEXTURE_2D) to turn on/off texture units.
Author
No, I make it once in the initializing part.
Does glEnable/glDisable(GL_TEXTURE_2D) have to be done every time?
Does glEnable/glDisable(GL_TEXTURE_2D) have to be done every time?
Since you want to switch multitexture-single texturing during rendering, setting up texture stages only once in initialization wouldn't exactly do the trick.
glEnable/glDisable(GL_TEXTURE_2D) operates only one the current active texture unit.
You have to enable/disable texture units seperately. For example:
glEnable/glDisable(GL_TEXTURE_2D) operates only one the current active texture unit.
You have to enable/disable texture units seperately. For example:
//Enable texture units 0&1(multitexturing)glActiveTextureARB(GL_TEXTURE1_ARB);glEnable(GL_TEXTURE_2D);//Enable texunit1glActiveTextureARB(GL_TEXTURE0_ARB);glEnable(GL_TEXTURE_2D);//Enable texunit0//Draw multitextured objects//Keep only texunit0 onglActiveTextureARB(GL_TEXTURE1_ARB);glDisable(GL_TEXTURE_2D);//Disable texunit1//Draw single textured objectsThis topic is closed to new replies.
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