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Fix various issues with zfreeze implemntation.

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Results are still not correct, but things are getting closer.

 * Don't cull CULLALL primitives so early so they can be used as reference
        planes.
 * Convert CalculateZSlope to screenspace coordinates.
 * Convert Pixelshader to screenspace coordinates (instead of worldspace
        xy coordinates, which is totally wrong)
 * Divide depth by 2^24 instead of clamping to 0.0-1.0 as was done
        before.

Progress:
 * Rouge Squadron 2/3 appear correct in game (videos in rs2 save file
         selection are missing)
 * Shadows draw 100% correctly in NHL 2003.
 * Mario golf menu renders correctly.
 * NFS: HP2, shadows sometimes render on top of car or below the road.
 * Mario Tennis, courts and shadows render correctly, but at wrong depth
 * Blood Omen 2, doesn't work.
This commit is contained in:
Scott Mansell
2015-01-02 23:55:41 +13:00
parent 613781c765
commit 418296961c
5 changed files with 16 additions and 10 deletions
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Source/Core/VideoCommon/PixelShaderGen.cpp
+2 -2
View File
@@ -546,7 +546,7 @@ static inline void GeneratePixelShader(T& out, DSTALPHA_MODE dstAlphaMode, API_T
{
if (bpmem.genMode.zfreeze)
{
out.Write("\tdepth = " I_ZSLOPE".z + " I_ZSLOPE".x * (clipPos.x / clipPos.w) + " I_ZSLOPE".y * (clipPos.y / clipPos.w);\n");
out.Write("\tdepth = float(" I_ZSLOPE".z + " I_ZSLOPE".x * rawpos.x + " I_ZSLOPE".y * rawpos.y) / float(0xffffff);\n");
}
else
{
@@ -569,7 +569,7 @@ static inline void GeneratePixelShader(T& out, DSTALPHA_MODE dstAlphaMode, API_T
{
if (bpmem.genMode.zfreeze)
{
out.Write("\tdepth = " I_ZSLOPE".z + " I_ZSLOPE".x * (clipPos.x / clipPos.w) + " I_ZSLOPE".y * (clipPos.y / clipPos.w);\n");
out.Write("\tdepth = float(" I_ZSLOPE".z + " I_ZSLOPE".x * rawpos.x + " I_ZSLOPE".y * rawpos.y) / float(0xffffff);\n");
}
else
{