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multitexturing and tex coordinate pointer?

Started by Basiror Nov 8, 2002 at 8:41 AM 4 replies 300+ views

Original Post

Basiror

140

Basiror

Nov 8, 2002 at 8:41 AM

is there another routine to specify the texturecoordinates in array when you use multitexturing

zedzeek

164

zedzeek

Nov 8, 2002 at 2:37 PM

glClientActiveTexture.( GL_TEXTURE0 );
glTexCoordPointer..
glClientActiveTexture.( GL_TEXTURE1 );
glTexCoordPointer

etc

http://uk.geocities.com/sloppyturds/kea/kea.html
http://uk.geocities.com/sloppyturds/gotterdammerung.html

Basiror

Author

140

Basiror

Nov 8, 2002 at 4:20 PM

and that works?

cause there is an extra function for specifying texture coordinates with ARB in the name

silvermace

105

silvermace

Nov 8, 2002 at 4:25 PM

yep, it works
im using it in my "yet another quake3 loader"

heres some code from the engine to get u started:

  
	glClientActiveTextureARB(GL_TEXTURE0_ARB);
	glTexCoordPointer(2, GL_FLOAT,Size, &GetBuffer()->m_RenderData[0].TextureCoords);

	glClientActiveTextureARB(GL_TEXTURE1_ARB);
	glTexCoordPointer(2, GL_FLOAT,Size, &GetBuffer()->m_RenderData[0].LightMapCoords);

	glEnableClientState(GL_VERTEX_ARRAY);
	glEnableClientState(GL_TEXTURE_COORD_ARRAY);

	glClientActiveTextureARB(GL_TEXTURE0_ARB);
	glEnableClientState(GL_TEXTURE_COORD_ARRAY);

	glClientActiveTextureARB(GL_TEXTURE1_ARB);
	glEnableClientState(GL_TEXTURE_COORD_ARRAY);

zedzeek

164

zedzeek

Nov 8, 2002 at 10:30 PM

quote:
Original post by Basiror
and that works?

cause there is an extra function for specifying texture coordinates with ARB in the name

yes u might need to add ARB or EXT etc for certain things but stuff like multitexture which has been added to opengl (since 1.3) theres no need to add the ARB eg GL_TEXTURE1_ARB if u have the headers u can use GL_TEXTURE1 (cause theyre both defined as the same number)

http://uk.geocities.com/sloppyturds/kea/kea.html
http://uk.geocities.com/sloppyturds/gotterdammerung.html

Basiror

Author

140

Basiror

Nov 9, 2002 at 4:57 AM

ok thx

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