mirror of
https://github.com/ptitSeb/Serious-Engine
synced 2024-11-25 03:40:26 +01:00
137 lines
3.7 KiB
C++
137 lines
3.7 KiB
C++
/* Copyright (c) 2002-2012 Croteam Ltd. All rights reserved. */
|
|
|
|
#include "StdH.h"
|
|
|
|
#define TEXTURE_COUNT 2
|
|
#define UVMAPS_COUNT 2
|
|
#define COLOR_COUNT 2
|
|
#define FLOAT_COUNT 2
|
|
#define FLAGS_COUNT 2
|
|
|
|
#define LAYER0_TEXTURE 0
|
|
#define LAYER0_UVMAP 0
|
|
#define LAYER0_COLOR 0
|
|
#define LAYER0_TILING 0
|
|
|
|
#define LAYER1_TEXTURE 1
|
|
#define LAYER1_UVMAP 1
|
|
#define LAYER1_COLOR 1
|
|
#define LAYER1_TILING 1
|
|
|
|
#define BASE_DOUBLE_SIDED (1UL<<0) // Double sided
|
|
#define BASE_FULL_BRIGHT (1UL<<1) // Full bright
|
|
|
|
SHADER_MAIN(MultiLayer)
|
|
{
|
|
// this will be reused for all layers
|
|
FLOAT fLayerTiling = 1.0f;
|
|
|
|
// do 0th layer pass - base layer
|
|
shaSetTexture(LAYER0_TEXTURE);
|
|
shaSetTextureWrapping( GFX_REPEAT, GFX_REPEAT);
|
|
shaSetUVMap(LAYER0_UVMAP);
|
|
shaSetColor(LAYER0_COLOR);
|
|
shaEnableDepthTest();
|
|
shaDepthFunc(GFX_LESS_EQUAL);
|
|
|
|
COLOR &colModelColor = shaGetModelColor();
|
|
BOOL bDoubleSided = shaGetFlags()&BASE_DOUBLE_SIDED;
|
|
BOOL bOpaque = (colModelColor&0xFF)==0xFF;
|
|
|
|
if(bDoubleSided) {
|
|
shaCullFace(GFX_NONE);
|
|
} else {
|
|
shaCullFace(GFX_BACK);
|
|
}
|
|
|
|
shaCalculateLight();
|
|
|
|
// if fully opaque
|
|
if(bOpaque) {
|
|
// shaEnableAlphaTest(TRUE);
|
|
shaDisableBlend();
|
|
shaEnableDepthWrite();
|
|
// if translucent
|
|
} else {
|
|
// shaEnableAlphaTest(FALSE);
|
|
shaEnableBlend();
|
|
shaBlendFunc(GFX_SRC_ALPHA, GFX_INV_SRC_ALPHA);
|
|
shaDisableDepthWrite();
|
|
shaModifyColorForFog();
|
|
}
|
|
|
|
if(shaOverBrightningEnabled()) shaSetTextureModulation(2);
|
|
|
|
fLayerTiling = shaGetFloat(LAYER0_TILING);
|
|
if (fLayerTiling!=1.0f) {
|
|
GFXTexCoord *ptxcOld = shaGetUVMap(LAYER0_UVMAP);
|
|
GFXTexCoord *ptxcNew = shaGetNewTexCoordArray();
|
|
INDEX ctTexCoords = shaGetVertexCount();
|
|
if(ctTexCoords>0 && ptxcOld!=NULL) {
|
|
for(INDEX itxc=0;itxc<ctTexCoords;itxc++)
|
|
{
|
|
ptxcNew[itxc].u = ptxcOld[itxc].u * fLayerTiling;
|
|
ptxcNew[itxc].v = ptxcOld[itxc].v * fLayerTiling;
|
|
}
|
|
shaSetTexCoords(ptxcNew);
|
|
}
|
|
}
|
|
shaRender();
|
|
if(bOpaque) {
|
|
shaDoFogPass();
|
|
}
|
|
|
|
// do 1st layer pass
|
|
|
|
fLayerTiling = shaGetFloat(LAYER1_TILING);
|
|
shaBlendFunc( GFX_SRC_ALPHA, GFX_INV_SRC_ALPHA);
|
|
shaSetTexture(LAYER1_TEXTURE);
|
|
shaSetUVMap(LAYER1_UVMAP);
|
|
shaSetColor(LAYER1_COLOR);
|
|
shaCalculateLight();
|
|
|
|
shaEnableBlend();
|
|
|
|
if (fLayerTiling!=1.0f) {
|
|
GFXTexCoord *ptxcOld = shaGetUVMap(LAYER1_UVMAP);
|
|
GFXTexCoord *ptxcNew = shaGetNewTexCoordArray();
|
|
INDEX ctTexCoords = shaGetVertexCount();
|
|
if(ctTexCoords>0 && ptxcOld!=NULL) {
|
|
for(INDEX itxc=0; itxc<ctTexCoords; itxc++)
|
|
{
|
|
ptxcNew[itxc].u = ptxcOld[itxc].u * fLayerTiling;
|
|
ptxcNew[itxc].v = ptxcOld[itxc].v * fLayerTiling;
|
|
}
|
|
shaSetTexCoords(ptxcNew);
|
|
}
|
|
}
|
|
shaRender();
|
|
shaDisableBlend();
|
|
|
|
if(shaOverBrightningEnabled()) shaSetTextureModulation(1);
|
|
}
|
|
|
|
SHADER_DESC(MultiLayer, ShaderDesc &shDesc)
|
|
{
|
|
shDesc.sd_astrTextureNames .New(TEXTURE_COUNT);
|
|
shDesc.sd_astrTexCoordNames.New(UVMAPS_COUNT);
|
|
shDesc.sd_astrColorNames .New(COLOR_COUNT);
|
|
shDesc.sd_astrFloatNames .New(FLOAT_COUNT);
|
|
shDesc.sd_astrFlagNames .New(FLAGS_COUNT);
|
|
|
|
// layer 0 - base
|
|
shDesc.sd_astrTextureNames [0] = "Layer0* texture";
|
|
shDesc.sd_astrTexCoordNames[0] = "Layer0* UVMap";
|
|
shDesc.sd_astrColorNames [0] = "Layer0* color";
|
|
shDesc.sd_astrFloatNames [0] = "Layer0* tiling factor";
|
|
// layer 1
|
|
shDesc.sd_astrTextureNames [1] = "Layer1 texture";
|
|
shDesc.sd_astrTexCoordNames[1] = "Layer1 UVMap";
|
|
shDesc.sd_astrColorNames [1] = "Layer1 color";
|
|
shDesc.sd_astrFloatNames [1] = "Layer1 tiling factor";
|
|
|
|
shDesc.sd_astrFlagNames[0] = "Double sided";
|
|
shDesc.sd_astrFlagNames[1] = "Full bright";
|
|
|
|
shDesc.sd_strShaderInfo = "Multi Layer shader";
|
|
} |