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博客园 - cloudseawang

选择 latex math \sum的写法 - cloudseawang - 博客园 qt 4.8.5 vs 2012编译 Graphical Cognition graphical perception When to Use Bar Charts Instead of Pie Charts There's no Qt version assigned to this project for platform Win32. Please use the 'change Qt version' feature and choose a valid Qt version for this 转Tutorial papers for MRF, CRF and DRF 转 QT无法定位程序输入点*于动态链接库 QtCore4.dll 难道一直是4 4 2 3的命? bibtex to bibitem 再次被rejected qt ogl添加keyevent 牛年最后一天的rejection cg 如何给结构体数组赋值 - cloudseawang - 博客园 cg fp40的问题 cg又一个数据绑定错误 qt +vs2005开发
cg纹理绑定顺序的一个错误
cloudseawang · 2009-07-23 · via 博客园 - cloudseawang

如果希望在程序里动态的绑定纹理,绑定的代码,一定要写在所有的cg纹理参数绑定的前面,否则会出错。

以下代码正确:

glBindTexture(GL_TEXTURE_2D, m_xxxTexId);

glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 256,256, 0, GL_RGBA, GL_UNSIGNED_BYTE,m_xxxTex);

cgGLSetTextureParameter( cgGetNamedParameter(m_raycastFrag,"xxx"),m_xxxTexId);

cgGLEnableTextureParameter(cgGetNamedParameter(m_raycastFrag,"xxx"));

cgGLSetTextureParameter( cgGetNamedParameter(m_raycastFrag,"xxxx"),  m_xxxxTexId);

cgGLEnableTextureParameter(cgGetNamedParameter(m_raycastFrag,"xxxx"));

如果把绑定放在cgGLSetTextureParameter之后,纹理绑定都会出错。