1.17+ OptiFine uniform and attribute support
Luracasmus opened this issue · 1 comments
Is your feature request related to a problem? Please describe.
Iris currently does not seem to support the 1.17+ uniforms and attributes added by OptiFine:
| Source | Value |
|---|---|
| uniform mat4 modelViewMatrix; | model view matrix |
| uniform mat4 modelViewMatrixInverse; | modelViewMatrixInverse |
| uniform mat4 projectionMatrix; | projectionMatrix |
| uniform mat4 projectionMatrixInverse; | projectionMatrixInverse |
| uniform mat4 textureMatrix = mat4(1.0); | textureMatrix = mat4(1.0) |
| uniform mat3 normalMatrix; | normal matrix |
| uniform vec3 chunkOffset; | terrain chunk origin, used with attribute vaPosition |
| uniform float alphaTestRef; | alpha test reference value, the check is if (color.a < alphaTestRef) discard; |
| uniform float darknessFactor | strength of the darkness effect (0.0-1.0) |
| uniform float darknessLightFactor | lightmap variations caused by the darkness effect (0.0-1.0) |
| Source | Value | Comment |
|---|---|---|
| in vec3 vaPosition; | position (x, y, z) | 1.17+, for terrain it is relative to the chunk origin, see "chunkOffset" |
| in vec4 vaColor; | color (r, g, b, a) | 1.17+ |
| in vec2 vaUV0; | texture (u, v) | 1.17+ |
| in ivec2 vaUV1; | overlay (u, v) | 1.17+ |
| in ivec2 vaUV2; | lightmap (u, v) | 1.17+ |
| in vec3 vaNormal; | normal (x, y, z) | 1.17+ |
Describe the solution you'd like
Add support for the new uniforms and attributes in Iris
Describe alternatives you've considered
There are some older alternatives (gl_MultiTexCoord0, ftransform, etc.)
