iphone Programming Glossary: gl_combine_alpha
Applying brightness and contrast with OpenGL ES http://stackoverflow.com/questions/1506299/applying-brightness-and-contrast-with-opengl-es GL_TEXTURE_ENV GL_SRC0_RGB GL_TEXTURE glTexEnvi GL_TEXTURE_ENV GL_SRC1_RGB GL_PRIMARY_COLOR glTexEnvi GL_TEXTURE_ENV GL_COMBINE_ALPHA GL_REPLACE glTexEnvi GL_TEXTURE_ENV GL_SRC0_ALPHA GL_TEXTURE glDrawArrays GL_TRIANGLE_FAN 0 4 How would i go with adding.. GL_TEXTURE_ENV GL_SRC0_RGB GL_TEXTURE glTexEnvi GL_TEXTURE_ENV GL_SRC1_RGB GL_PRIMARY_COLOR glTexEnvi GL_TEXTURE_ENV GL_COMBINE_ALPHA GL_INTERPOLATE glTexEnvi GL_TEXTURE_ENV GL_SRC0_ALPHA GL_TEXTURE glActiveTexture GL_TEXTURE1 glEnable GL_TEXTURE_2D glTexEnvi.. glTexEnvi GL_TEXTURE_ENV GL_OPERAND1_RGB GL_SRC_ALPHA glTexEnvi GL_TEXTURE_ENV GL_RGB_SCALE 2 glTexEnvi GL_TEXTURE_ENV GL_COMBINE_ALPHA GL_REPLACE glTexEnvi GL_TEXTURE_ENV GL_SRC0_ALPHA GL_PREVIOUS glColor4f h h h 0.75 0.5 h 2x extrapolation validateTexEnv..
How do I create blurred text in an iPhone view? http://stackoverflow.com/questions/227305/how-do-i-create-blurred-text-in-an-iphone-view GL_SRC2_RGB GL_PRIMARY_COLOR glTexEnvi GL_TEXTURE_ENV GL_OPERAND2_RGB GL_SRC_COLOR glTexEnvi GL_TEXTURE_ENV GL_COMBINE_ALPHA GL_REPLACE glTexEnvi GL_TEXTURE_ENV GL_SRC0_ALPHA GL_PRIMARY_COLOR glColor4f 0.5 0.5 0.5 2.0 5 validateTexEnv glDrawArrays..
OpenGL ES 1.1: How to change texture color without losing luminance? http://stackoverflow.com/questions/4361023/opengl-es-1-1-how-to-change-texture-color-without-losing-luminance
Can example “GLImageProcessing” work with multi filters http://stackoverflow.com/questions/4375479/can-example-glimageprocessing-work-with-multi-filters GL_TEXTURE_ENV GL_SRC0_RGB GL_TEXTURE glTexEnvi GL_TEXTURE_ENV GL_SRC1_RGB GL_CONSTANT glTexEnvi GL_TEXTURE_ENV GL_COMBINE_ALPHA GL_REPLACE glTexEnvi GL_TEXTURE_ENV GL_SRC0_ALPHA GL_TEXTURE process 2 adjust contrast t 1.6 GLfloat h t 0.5f One pass using.. GL_TEXTURE_ENV GL_SRC0_RGB GL_PREVIOUS glTexEnvi GL_TEXTURE_ENV GL_SRC1_RGB GL_PRIMARY_COLOR glTexEnvi GL_TEXTURE_ENV GL_COMBINE_ALPHA GL_REPLACE glTexEnvi GL_TEXTURE_ENV GL_SRC0_ALPHA GL_PREVIOUS glDisable GL_TEXTURE_2D glActiveTexture GL_TEXTURE2 glEnable.. glTexEnvi GL_TEXTURE_ENV GL_OPERAND1_RGB GL_SRC_ALPHA glTexEnvi GL_TEXTURE_ENV GL_RGB_SCALE 2 glTexEnvi GL_TEXTURE_ENV GL_COMBINE_ALPHA GL_REPLACE glTexEnvi GL_TEXTURE_ENV GL_SRC0_ALPHA GL_PREVIOUS glColor4f h h h 0.75 0.5 h 2x extrapolation validateTexEnv..
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