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Tweak the lighting model so that specular highlights ignore the diffuse map value when a specular map is defined.

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git-svn-id: https://svn.eduke32.com/eduke32@1380 1a8010ca-5511-0410-912e-c29ae57300e0
This commit is contained in:
plagman 2009-05-15 14:23:08 +00:00
parent 77703ce68a
commit 396256b6e0
1 changed files with 4 additions and 3 deletions
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7
polymer/eduke32/build/src/polymer.c
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@ -255,6 +255,7 @@ _prprogrambit prprogrambits[PR_BIT_COUNT] = {
"\n", "\n",
// frag_prog // frag_prog
" diffuseTexel = texture2D(diffuseMap, commonTexCoord.st);\n" " diffuseTexel = texture2D(diffuseMap, commonTexCoord.st);\n"
" specTexel = diffuseTexel;\n"
" if (isLightingPass == 0)\n" " if (isLightingPass == 0)\n"
" result *= diffuseTexel;\n" " result *= diffuseTexel;\n"
"\n", "\n",
@ -486,12 +487,12 @@ _prprogrambit prprogrambits[PR_BIT_COUNT] = {
"\n" "\n"
" R = reflect(-L, N);\n" " R = reflect(-L, N);\n"
"\n" "\n"
" lightDiffuse = diffuseTexel.a * gl_Color.a * diffuseTexel.rgb * shadowResult *\n" " lightDiffuse = diffuseTexel.a * gl_Color.a * shadowResult * lightTexel *\n"
" gl_LightSource[0].diffuse.rgb * lightAttenuation * spotAttenuation;\n" " gl_LightSource[0].diffuse.rgb * lightAttenuation * spotAttenuation;\n"
" result += vec4(lightDiffuse * lightTexel * NdotL, 0.0);\n" " result += vec4(lightDiffuse * diffuseTexel.rgb * NdotL, 0.0);\n"
"\n" "\n"
" lightSpecular = pow( max(dot(R, E), 0.0), specularMaterial.x * specTexel.a) * specularMaterial.y;\n" " lightSpecular = pow( max(dot(R, E), 0.0), specularMaterial.x * specTexel.a) * specularMaterial.y;\n"
" result += vec4(lightDiffuse * lightTexel * specTexel.rgb * lightSpecular, 0.0);\n" " result += vec4(lightDiffuse * specTexel.rgb * lightSpecular, 0.0);\n"
"\n", "\n",
}, },
{ {