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LightingShaderGen: Always calculate lighting for both color channels

Browse Source 
Cel-damage uses the color from the lighting stage of the vertex pipeline
as texture coordinates, but sets numColorChans to zero.

We now calculate the colors in all cases, but override the color before
writing it from the vertex shader if numColorChans is set to a lower value.
This commit is contained in:
Stenzek
2017-11-21 18:54:11 +10:00
parent 18c1bf19ca
commit efb9759862
7 changed files with 38 additions and 29 deletions
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35
Source/Core/VideoCommon/VertexShaderGen.cpp
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@ -239,24 +239,8 @@ ShaderCode GenerateVertexShaderCode(APIType api_type, const ShaderHostConfig& ho
"float3 ldir, h, cosAttn, distAttn;\n"
"float dist, dist2, attn;\n");
if (uid_data->numColorChans == 0)
{
if (uid_data->components & VB_HAS_COL0)
out.Write("o.colors_0 = rawcolor0;\n");
else
out.Write("o.colors_0 = float4(1.0, 1.0, 1.0, 1.0);\n");
}
GenerateLightingShaderCode(out, uid_data->lighting, uid_data->components, uid_data->numColorChans,
"rawcolor", "o.colors_");
if (uid_data->numColorChans < 2)
{
if (uid_data->components & VB_HAS_COL1)
out.Write("o.colors_1 = rawcolor1;\n");
else
out.Write("o.colors_1 = o.colors_0;\n");
}
GenerateLightingShaderCode(out, uid_data->lighting, uid_data->components, "rawcolor",
"o.colors_");
// transform texcoords
out.Write("float4 coord = float4(0.0, 0.0, 1.0, 1.0);\n");
@ -398,6 +382,21 @@ ShaderCode GenerateVertexShaderCode(APIType api_type, const ShaderHostConfig& ho
out.Write("}\n");
}
if (uid_data->numColorChans == 0)
{
if (uid_data->components & VB_HAS_COL0)
out.Write("o.colors_0 = rawcolor0;\n");
else
out.Write("o.colors_0 = float4(1.0, 1.0, 1.0, 1.0);\n");
}
if (uid_data->numColorChans < 2)
{
if (uid_data->components & VB_HAS_COL1)
out.Write("o.colors_1 = rawcolor1;\n");
else
out.Write("o.colors_1 = o.colors_0;\n");
}
// clipPos/w needs to be done in pixel shader, not here
out.Write("o.clipPos = o.pos;\n");