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我试图动态淡入淡出物品,因为它们显得更远。IOS GLKit:动态淡化纹理(OpenGL)
我有这个工作正常,纹理显示正常,但不褪色。
effect.texture2d0.enabled = GL_TRUE;
effect.texture2d0.envMode = GLKTextureEnvModeReplace;
effect.texture2d0.target = GLKTextureTarget2D;
effect.texture2d0.name = texture.name;
// transparancy
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
然后我改变它(基于几个堆栈溢出帖子)。使GLKTextureEnvModeModulate或添加glColor4f给我GL错误的错误:0x0502
effect.texture2d0.enabled = GL_TRUE;
effect.texture2d0.envMode = GLKTextureEnvModeModulate;
effect.texture2d0.target = GLKTextureTarget2D;
effect.texture2d0.name = texture.name;
// transparancy
glEnable(GL_BLEND);
glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA); // GL_SRC_ALPHA
glColor4f(0.7, 0.7, 0.7, 0.7);