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app/internal/gpu: re-add check for GL_EXT_color_buffer_half_float

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As noted in #49, GL_EXT_color_buffer_half_float is required for
GL_OES_texture_half_float to be useful for FBOs.

Updates #49

Signed-off-by: Elias Naur <mail@eliasnaur.com>
This commit is contained in:
Elias Naur
2019-12-11 15:12:57 +01:00
parent 8a44ac11d8
commit 4a628d1c2c
1 changed files with 1 additions and 1 deletions
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app/internal/gpu/context.go
+1 -1
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@@ -66,7 +66,7 @@ func floatTripleFor(ctx *context, ver [2]int, exts []string) (textureTriple, err
if ver[0] >= 3 {
triples = append(triples, textureTriple{gl.R16F, gl.Enum(gl.RED), gl.Enum(gl.HALF_FLOAT)})
}
if hasExtension(exts, "GL_OES_texture_half_float") {
if hasExtension(exts, "GL_OES_texture_half_float") && hasExtension(exts, "GL_EXT_color_buffer_half_float") {
// Try single channel.
triples = append(triples, textureTriple{gl.LUMINANCE, gl.Enum(gl.LUMINANCE), gl.Enum(gl.HALF_FLOAT_OES)})
// Fallback to 4 channels.