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Fix a bug with clamping, and added support for volumetric lighting

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This commit is contained in:
rdb 2009-03-05 20:18:11 +00:00
parent 0b5d517dcd
commit 406ea02a5e
1 changed files with 54 additions and 4 deletions
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50
direct/src/filter/CommonFilters.py
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@ -93,6 +93,8 @@ class CommonFilters:
auxbits |= AuxBitplaneAttrib.ABOGlow
for tex in needtex:
self.textures[tex] = Texture("scene-"+tex)
self.textures[tex].setWrapU(Texture.WMClamp)
self.textures[tex].setWrapV(Texture.WMClamp)
needtexpix = True
self.finalQuad = self.manager.renderSceneInto(textures = self.textures, auxbits=auxbits)
@ -141,6 +143,10 @@ class CommonFilters:
if (configuration.has_key("Bloom")):
text += " uniform float4 texpad_txbloom3,\n"
text += " out float4 l_texcoordB : TEXCOORD2,\n"
if (configuration.has_key("VolumetricLighting")):
text += "uniform float4x4 trans_model_to_clip_of_camera,\n"
text += "uniform float4 mspos_caster,\n"
text += "out float2 l_casterpos,\n"
text += " uniform float4x4 mat_modelproj)\n"
text += "{\n"
text += " l_position=mul(mat_modelproj, vtx_position);\n"
@ -153,6 +159,8 @@ class CommonFilters:
text += " l_texcoordC+=texpix_txcolor*0.5;\n"
if (configuration.has_key("CartoonInk")):
text += " l_texcoordN+=texpix_txaux*0.5;\n"
if (configuration.has_key("VolumetricLighting")):
text += " l_casterpos=(mul(trans_model_to_clip_of_camera, mspos_caster).xy);\n"
text += "}\n"
text += "void fshader(\n"
@ -167,6 +175,9 @@ class CommonFilters:
text += "uniform sampler2D k_tx" + key + ",\n"
if (configuration.has_key("CartoonInk")):
text += "uniform float4 k_cartoonseparation,\n"
if (configuration.has_key("VolumetricLighting")):
text += "uniform float4 k_vlparams,\n"
text += "float2 l_casterpos,\n"
text += "out float4 o_color : COLOR)\n"
text += "{\n"
text += " o_color = tex2D(k_txcolor, l_texcoordC.xy);\n"
@ -178,6 +189,20 @@ class CommonFilters:
text += "o_color = 1-((1-bloom)*(1-o_color));\n"
if (configuration.has_key("ViewGlow")):
text += "o_color.r = o_color.a;\n"
if (configuration.has_key("VolumetricLighting")):
text += "float decay = 1.0f;\n"
text += "float2 curcoord = l_texcoordC.xy;\n"
text += "float2 lightdir = normalize(curcoord - l_casterpos);\n" text += "lightdir *= k_vlparams.y;\n"
text += "half4 sample = tex2D(k_txcolor, curcoord);\n"
text += "float3 vlcolor = sample.rgb * sample.a;\n"
text += "for (int i = 0; i < k_vlparams.x; i++) {\n"
text += " curcoord -= lightdir;\n"
text += " sample = tex2D(k_txcolor, curcoord);\n"
text += " sample *= sample.a * decay;//*weight\n"
text += " vlcolor += sample.rgb;\n"
text += " decay *= k_vlparams.z;\n"
text += "}\n"
text += "o_color += float4(vlcolor * k_vlparams.w, 1);\n"
if (configuration.has_key("Inverted")):
text += "o_color = float4(1, 1, 1, 1) - o_color;\n"
text += "}\n"
@ -200,6 +225,14 @@ class CommonFilters:
self.bloom[0].setShaderInput("desat", bloomconf.desat)
self.bloom[3].setShaderInput("intensity", intensity, intensity, intensity, intensity)
if (changed == "VolumetricLighting") or fullrebuild:
if (configuration.has_key("VolumetricLighting")):
config = configuration["VolumetricLighting"]
tcparam = (1.0 / config.density) / float(config.numsamples)
self.finalQuad.setShaderInput("camera", self.manager.camera)
self.finalQuad.setShaderInput("caster", config.caster)
self.finalQuad.setShaderInput("vlparams", config.numsamples, tcparam, 1.0 - config.decay, config.exposure)
return True
def setCartoonInk(self, separation=1):
@ -275,3 +308,20 @@ class CommonFilters:
return self.reconfigure(True, "Inverted")
return True
def setVolumetricLighting(self, caster, numsamples = 32, density = 5.0, decay = 0.1, exposure = 0.1):
fullrebuild = (self.configuration.has_key("VolumetricLighting") == False)
newconfig = FilterConfig()
newconfig.caster = caster
newconfig.numsamples = numsamples
newconfig.density = density
newconfig.decay = decay
newconfig.exposure = exposure
self.configuration["VolumetricLighting"] = newconfig
return self.reconfigure(fullrebuild, "VolumetricLighting")
def delVolumetricLighting(self):
if (self.configuration.has_key("VolumetricLighting")):
del self.configuration["VolumetricLighting"]
return self.reconfigure(True, "VolumetricLighting")
return True