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HW T&L : clamp lightscale

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This commit is contained in:
raven02 2013-04-09 20:42:40 +08:00
parent be5af6831e
commit 07a36f2384
1 changed files with 4 additions and 5 deletions
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9
GPU/GLES/VertexShaderGenerator.cpp
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@ -46,7 +46,7 @@ bool CanUseHardwareTransform(int prim)
// prim so we can special case for RECTANGLES :(
void ComputeVertexShaderID(VertexShaderID *id, int prim)
{
int doTexture = (gstate.textureMapEnable & 1) && !(gstate.isModeClear());
int doTexture = gstate.isTextureMapEnabled() && !gstate.isModeClear();
bool hasColor = (gstate.vertType & GE_VTYPE_COL_MASK) != 0;
bool hasNormal = (gstate.vertType & GE_VTYPE_NRM_MASK) != 0;
@ -142,8 +142,8 @@ void GenerateVertexShader(int prim, char *buffer) {
WRITE(p, "#define mediump\n");
#endif
int lmode = (gstate.lmode & 1) && (gstate.lightingEnable & 1);
int doTexture = (gstate.textureMapEnable & 1) && !(gstate.clearmode & 1);
int lmode = (gstate.lmode & 1) && gstate.isLightingEnabled();
int doTexture = gstate.isTextureMapEnabled() && !gstate.isModeClear();
bool hwXForm = CanUseHardwareTransform(prim);
bool hasColor = (gstate.vertType & GE_VTYPE_COL_MASK) != 0 || !hwXForm;
@ -340,8 +340,7 @@ void GenerateVertexShader(int prim, char *buffer) {
if (type != GE_LIGHTTYPE_DIRECTIONAL) {
// Attenuation
WRITE(p, " float distance%i = length(toLight%i);\n", i, i);
WRITE(p, " lightScale%i = 1.0 / dot(u_lightatt%i, vec3(1.0, distance%i, distance%i*distance%i));\n", i, i, i, i, i);
WRITE(p, " if (lightScale%i > 1.0) lightScale%i = 1.0;\n", i, i);
WRITE(p, " lightScale%i = clamp(1.0 / dot(u_lightatt%i, vec3(1.0, distance%i, distance%i*distance%i)), 0.0, 1.0);\n", i, i, i, i, i);
}
WRITE(p, " vec3 diffuse%i = (u_lightdiffuse%i * %s) * (max(dot%i, 0.0) * lightScale%i);\n", i, i, diffuse, i, i);
if (doSpecular) {