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soconne

Font not showing up

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I''m following the code from NeHe''s tutorial #13 for drawing font to the screen. It works perfectly fine, but before I draw the font to the screen, I draw lots of models and call the following functions to set texture combiner parameters. glActiveTextureARB(GL_TEXTURE0); glEnable(GL_TEXTURE_2D); glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_ARB); glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_RGB_ARB, GL_MODULATE); glTexEnvf(GL_TEXTURE_ENV, GL_SOURCE0_RGB_ARB, GL_PRIMARY_COLOR); glTexEnvf(GL_TEXTURE_ENV, GL_OPERAND0_RGB_ARB, GL_SRC_COLOR); glTexEnvf(GL_TEXTURE_ENV, GL_SOURCE1_RGB_ARB, GL_TEXTURE0); glTexEnvf(GL_TEXTURE_ENV, GL_OPERAND1_RGB_ARB, GL_SRC_COLOR); glTexEnvf(GL_TEXTURE_ENV, GL_SOURCE0_ALPHA_ARB, GL_TEXTURE0); glTexEnvf(GL_TEXTURE_ENV, GL_OPERAND0_ALPHA_ARB, GL_SRC_COLOR); glTexEnvf(GL_TEXTURE_ENV, GL_SOURCE1_ALPHA_ARB, GL_TEXTURE0); glTexEnvf(GL_TEXTURE_ENV, GL_OPERAND1_ALPHA_ARB, GL_SRC_COLOR); If I call these, the font doesn''t show up, but if I don''t call these it does. Also, by commenting out the last 4 lines, the font then shows up. So its something about the Alpha component of the register combiners thats making the font not get drawn, but I cannot figure out why or what is causing it. Any ideas?

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Try a
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
to disable the texture_env_combine-mode after you are done with your model drawing.

Jan

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