摘要： In addition to basic if-then-else statements, it is possible to write for, while, and do-while loops. In OpenGL ES 2.0, very strict rules governed the usage of loops. Essentially, only loops that co... 阅读全文

摘要： An example function definition is given here for a simple function that computes basic diffuse lighting: vec4 diffuse(vec3 normal, vec3 light, vec4 baseColor) { return baseColor * dot(normal, l... 阅读全文

摘要： To query for the list of active uniforms in a program, you first call glGetProgramiv with the GL_ACTIVE_UNIFORMS parameter (as described in the previous section). This will tell you the number of acti... 阅读全文

摘要： glValidateProgram应该只用于调试，用于release版本中会影响性能。以下是详细描述： Before doing so, however, we might want to check whether the program validates. That is, there are certain aspects of execution that a successful ... 阅读全文