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OpenGL texture format enums table

Rich Geldreich edited this page Sep 28, 2019 · 2 revisions

For reference, here are the OpenGL texture formats/internal formats enums corresponding to each compressed texture format in the transcoder_texture_format enum in transcoder/basisu_transcoder.h. The command line tool uses these OpenGL enums when it writes .KTX format texture files.

transcoder_texture_format GL internal format GL base internal format
cTFBC1_RGB GL_COMPRESSED_RGB_S3TC_DXT1_EXT GL_RGB
cTFBC3_RGBA GL_COMPRESSED_RGBA_S3TC_DXT5_EXT GL_RGBA
cTFBC4_R GL_COMPRESSED_RED_RGTC1_EXT GL_RED
cTFBC5_RG GL_COMPRESSED_RED_GREEN_RGTC2_EXT GL_RG
cTFETC1_RGB GL_ETC1_RGB8_OES GL_RGB
cTFETC2_RGBA GL_COMPRESSED_RGBA8_ETC2_EAC GL_RGBA
cTFBC7_M6_RGB, cTFBC7_M5_RGBA GL_COMPRESSED_RGBA_BPTC_UNORM GL_RGBA
cTFPVRTC1_4_RGB GL_COMPRESSED_RGB_PVRTC_4BPPV1_IMG GL_RGB
cTFPVRTC1_4_RGBA GL_COMPRESSED_RGBA_PVRTC_4BPPV1_IMG GL_RGBA
cTFASTC_4x4_RGBA GL_COMPRESSED_RGBA_ASTC_4x4_KHR GL_RGBA
cTFATC_RGB GL_ATC_RGB_AMD GL_RGB
cTFATC_RGBA GL_ATC_RGBA_INTERPOLATED_ALPHA_AMD GL_RGBA
cTFETC2_EAC_R11 GL_COMPRESSED_R11_EAC GL_RED
cTFETC2_EAC_RG11 GL_COMPRESSED_RG11_EAC GL_RG
cTFFXT1_RGB GL_COMPRESSED_RGB_FXT1_3DFX GL_RGB
cTFPVRTC2_4_RGB, cTFPVRTC2_4_RGBA GL_COMPRESSED_RGBA_PVRTC_4BPPV2_IMG GL_RGBA
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