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2014/10/15 ¤U¤È 10:09:49

iphone Programming Glossary: gl_replace

Applying brightness and contrast with OpenGL ES

http://stackoverflow.com/questions/1506299/applying-brightness-and-contrast-with-opengl-es

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 contrast to.. 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 glDrawArrays..

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

i .t 0.5 offh glTexCoordPointer 2 GL_FLOAT sizeof V2fT2f tmpquad 0 .x glTexEnvi GL_TEXTURE_ENV GL_TEXTURE_ENV_MODE GL_REPLACE glActiveTexture GL_TEXTURE1 glEnable GL_TEXTURE_2D glClientActiveTexture GL_TEXTURE1 glTexCoordPointer 2 GL_FLOAT sizeof.. 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 GL_TRIANGLE_STRIP..

Can example “GLImageProcessing” work with multi filters

http://stackoverflow.com/questions/4375479/can-example-glimageprocessing-work-with-multi-filters

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 two units.. 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 GL_TEXTURE_2D.. 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 glDrawArrays..