Cocos2D: Upgrading from OpenGL 1.1 to 2.0
- by Alex
I have recently starting upgrading my ios game to the latest Cocos2D (2.0 rc), and I am having some difficulties upgrading my texture generation code to OpenGL 2.0.
In the old version I generated images with this code:
CCRenderTexture *rt =
[CCRenderTexture renderTextureWithWidth:WIDTH height:HEIGHT];
[rt beginWithClear:bgColor.r g:bgColor.g b:bgColor.b a:bgColor.a];
glDisable(GL_TEXTURE_2D);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
glVertexPointer(2, GL_FLOAT, 0, verts);
glColorPointer(4, GL_FLOAT, 0, colors);
glDrawArrays(GL_TRIANGLE_STRIP, 0, (GLsizei)nVerts);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
glEnable(GL_TEXTURE_2D);
[rt end];
But since OpenGL 2.0 works differently this code won't work. What is the best way to use the new OpenGL?
