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fix(forum-55420): convert Spine vertex colors from gamma to linear in 3D shader #2311

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fix(forum-55420): convert Spine vertex colors from gamma to linear in 3D shader #2311

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3 changes: 3 additions & 0 deletions src/layaAir/laya/spine/shader/files/Spine3D.vs
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Original file line number Diff line number Diff line change
Expand Up @@ -42,6 +42,9 @@ void main()

#ifdef COLOR2
v_color2 = a_color2;
#ifdef Gamma_u_spineTexture
v_color2.rgb = pow(v_color2.rgb, vec3(2.2));
#endif
#else
v_color2 = vec4(0.0, 0.0, 0.0, 1.0);
#endif
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3 changes: 3 additions & 0 deletions src/layaAir/laya/spine/shader/files/Spine3DVertex.glsl
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Expand Up @@ -50,6 +50,9 @@ void getVertexParams(inout Vertex vertex)
vertex.vertexColor = vec4(1.0,1.0,1.0,1.0);

vertex.vertexColor = a_color;
#ifdef Gamma_u_spineTexture
vertex.vertexColor.rgb = pow(vertex.vertexColor.rgb, vec3(2.2));
#endif
vertex.vertexColor.rgb *=a_color.a;

vertex.texCoord0 = a_uv;
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