I am able to do some blending and stuff but i want it to be more efficient cuz the current method i use costs me 2 mutch cpu power.
Here you see the scene im working on.
http://members.home.nl/skynet2097/Images/PlayStation%202.jpg
The logo in the left lower corner is made with this code :
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void drawFrame(int x, int y, int width, int height, int textID, int blendID)
{
glBlendFunc(GL_DST_COLOR,GL_ZERO);
glEnable(GL_BLEND);
(*glActiveTextureARB)(GL_TEXTURE1_ARB);
glDisable(GL_TEXTURE_2D);
(*glActiveTextureARB)(GL_TEXTURE0_ARB);
glBindTexture(GL_TEXTURE_2D, texture[textID]);
glBegin(GL_QUADS);
glTexCoord2f(0.0f, 1.0f); glVertex2f(0 + x, 0 + y);
glTexCoord2f(0.0f, 0.0f); glVertex2f(0 + x, height + y);
glTexCoord2f(1.0f, 0.0f); glVertex2f(width + x, height + y);
glTexCoord2f(1.0f, 1.0f); glVertex2f(width + x, 0 + y);
glEnd();
glBlendFunc(GL_ONE,GL_ONE);
(*glActiveTextureARB)(GL_TEXTURE0_ARB);
glBindTexture(GL_TEXTURE_2D, texture[blendID]);
glBegin(GL_QUADS);
glTexCoord2f(0.0f, 1.0f); glVertex2f(0 + x, 0 + y);
glTexCoord2f(0.0f, 0.0f); glVertex2f(0 + x, height + y);
glTexCoord2f(1.0f, 0.0f); glVertex2f(width + x, height + y);
glTexCoord2f(1.0f, 1.0f); glVertex2f(width + x, 0 + y);
glEnd();
glDisable(GL_BLEND);
(*glActiveTextureARB)(GL_TEXTURE1_ARB);
glEnable(GL_TEXTURE_2D);
}
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Basicly im drawing the same quad object twice, and its a waste of cpu power. So i was thinking there has 2 be antoher way. How can i blend the tetxture and draw only the object once??
Edit
once more thing, i disable the GL_TEXTURE1_ARB because its for the multi texturing. But i wanna use it blend the textures… but how and is it possible?
[This message has been edited by GL_ZERO (edited 07-25-2003).]
