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* fix build error

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* make betterer polygon splitting an option
* add GL_LEQUAL depth test for 'equal' mode, might help
This commit is contained in:
Arisotura
2020-08-24 19:32:07 +02:00
parent abccc44eec
commit e7025abcdc
9 changed files with 47 additions and 12 deletions
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27
src/GPU3D_OpenGL.cpp
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@ -113,7 +113,7 @@ GLuint TexMemID;
GLuint TexPalMemID;
int ScaleFactor;
bool Antialias;
bool BetterPolygons;
int ScreenW, ScreenH;
GLuint FramebufferTex[8];
@ -405,6 +405,7 @@ void SetRenderSettings(GPU::RenderSettings& settings)
int scale = settings.GL_ScaleFactor;
ScaleFactor = scale;
BetterPolygons = settings.GL_BetterPolygons;
ScreenW = 256 * scale;
ScreenH = 192 * scale;
@ -635,7 +636,7 @@ void BuildPolygons(RendererPolygon* polygons, int npolys)
{
rp->PrimType = GL_TRIANGLES;
if (false)
if (!BetterPolygons)
{
// regular triangle-splitting
@ -835,6 +836,10 @@ void RenderSceneChunk(int y, int h)
GLboolean fogenable = (RenderDispCnt & (1<<7)) ? GL_TRUE : GL_FALSE;
// TODO: proper 'equal' depth test!
// (has margin of +-0x200 in Z-buffer mode, +-0xFF in W-buffer mode)
// for now we're using GL_LEQUAL to make it work to some extent
// pass 1: opaque pixels
UseRenderShader(flags);
@ -853,8 +858,10 @@ void RenderSceneChunk(int y, int h)
if (rp->PolyData->IsShadowMask) { i++; continue; }
// zorp
glDepthFunc(GL_LESS);
if (rp->PolyData->Attr & (1<<14))
glDepthFunc(GL_LEQUAL);
else
glDepthFunc(GL_LESS);
u32 polyattr = rp->PolyData->Attr;
u32 polyid = (polyattr >> 24) & 0x3F;
@ -939,8 +946,10 @@ void RenderSceneChunk(int y, int h)
{
UseRenderShader(flags | RenderFlag_Trans);
// zorp
glDepthFunc(GL_LESS);
if (rp->PolyData->Attr & (1<<14))
glDepthFunc(GL_LEQUAL);
else
glDepthFunc(GL_LESS);
u32 polyattr = rp->PolyData->Attr;
u32 polyid = (polyattr >> 24) & 0x3F;
@ -1030,8 +1039,10 @@ void RenderSceneChunk(int y, int h)
if (!(polyattr & (1<<15))) transfog = fogenable;
else transfog = GL_FALSE;
// zorp
glDepthFunc(GL_LESS);
if (rp->PolyData->Attr & (1<<14))
glDepthFunc(GL_LEQUAL);
else
glDepthFunc(GL_LESS);
if (rp->PolyData->IsShadow)
{