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VideoSW: rewrite lighting attenuation

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- Fixes remaining lighting issues (Mario Tennis, etc)
- Apply same fixes to Software Renderer
- Corrected zero length light direction vector to resolve with normal direction (essentially becomes LIGHTDIF_NONE which was what I was after)
This commit is contained in:
NanoByte011
2015-02-07 10:40:21 -07:00
committed by degasus
parent 5a0daef7f0
commit 06d1b8c63a
2 changed files with 88 additions and 126 deletions
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4
Source/Core/VideoCommon/LightingShaderGen.h
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@ -63,7 +63,8 @@ static void GenerateLightShader(T& object, LightingUidData& uid_data, int index,
case LIGHTATTN_NONE:
case LIGHTATTN_DIR:
object.Write("ldir = normalize(" LIGHT_POS".xyz - pos.xyz);\n", LIGHT_POS_PARAMS(index));
object.Write("attn = 1.0f;\n");
object.Write("attn = 1.0;\n");
object.Write("if (length(ldir) == 0.0)\n\t ldir = _norm0;\n");
break;
case LIGHTATTN_SPEC:
object.Write("ldir = normalize(" LIGHT_POS".xyz - pos.xyz);\n", LIGHT_POS_PARAMS(index));
@ -82,6 +83,7 @@ static void GenerateLightShader(T& object, LightingUidData& uid_data, int index,
object.Write("attn = max(0.0, " LIGHT_COSATT".x + " LIGHT_COSATT".y*attn + " LIGHT_COSATT".z*attn*attn) / dot(" LIGHT_DISTATT".xyz, float3(1.0,dist,dist2));\n",
LIGHT_COSATT_PARAMS(index), LIGHT_COSATT_PARAMS(index), LIGHT_COSATT_PARAMS(index), LIGHT_DISTATT_PARAMS(index));
break;
default: _assert_(0);
}
switch (chan.diffusefunc)