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Diffstat (limited to 'drivers/gles3/shader_gles3.h')
-rw-r--r--drivers/gles3/shader_gles3.h8
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/gles3/shader_gles3.h b/drivers/gles3/shader_gles3.h
index 15281064af..763d3bfa8b 100644
--- a/drivers/gles3/shader_gles3.h
+++ b/drivers/gles3/shader_gles3.h
@@ -73,10 +73,11 @@ private:
//versions
CharString general_defines;
- // A version is a high-level construct which is a combination of built-in and user-defined shader code
- // Variants use #idefs to toggle behaviour on and off to change behaviour of the shader
+ // A version is a high-level construct which is a combination of built-in and user-defined shader code, Each user-created Shader makes one version
+ // Variants use #ifdefs to toggle behaviour on and off to change behaviour of the shader
+ // All variants are compiled each time a new version is created
// Specializations use #ifdefs to toggle behaviour on and off for performance, on supporting hardware, they will compile a version with everything enabled, and then compile more copies to improve performance
- // Use specializations to enable and disabled advanced features, use variants to toggle behaviour when different data may be used (e.g. using a samplerArray vs a sampler)
+ // Use specializations to enable and disabled advanced features, use variants to toggle behaviour when different data may be used (e.g. using a samplerArray vs a sampler, or doing a depth prepass vs a color pass)
struct Version {
Vector<StringName> texture_uniforms;
CharString uniforms;
@@ -217,6 +218,7 @@ protected:
ERR_FAIL_INDEX_V(p_which, uniform_count, -1);
Version *version = version_owner.get_or_null(p_version);
ERR_FAIL_COND_V(!version, -1);
+ ERR_FAIL_INDEX_V(p_variant, int(version->variants.size()), -1);
return version->variants[p_variant].lookup_ptr(p_specialization)->uniform_location[p_which];
}