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2014/10/15 ¤U¤È 10:12:37
iphone Programming Glossary: pixeltopHow do I blend two textures with different co-ordinates in OpenGL ES 2.0 on iPhone? http://stackoverflow.com/questions/12242443/how-do-i-blend-two-textures-with-different-co-ordinates-in-opengl-es-2-0-on-ipho uniform sampler2D inputTextureTop uniform sampler2D inputTextureBot uniform highp float alphaTop void main lowp vec4 pixelTop texture2D inputTextureTop textureCoordinate lowp vec4 pixelBot texture2D inputTextureBot textureCoordinate gl_FragColor.. textureCoordinate lowp vec4 pixelBot texture2D inputTextureBot textureCoordinate gl_FragColor someBlendOperation pixelTop pixelBot iphone ios opengl es opengl es 2.0 textures share improve this question You have to pass 2 texture coordinates.. uniform sampler2D inputTextureTop uniform sampler2D inputTextureBot uniform highp float alphaTop void main lowp vec4 pixelTop texture2D inputTextureTop textureCoordinate lowp vec4 pixelBot texture2D inputTextureBot textureCoordinate2 gl_FragColor..
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