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u_lightpos is always set when lights are available.

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Tiny optimization.
This commit is contained in:
Unknown W. Brackets 2014-11-05 00:57:22 -08:00
parent 7819b97c9a
commit ebb9f68c3e
1 changed files with 14 additions and 16 deletions
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30
GPU/GLES/ShaderManager.cpp
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@ -608,22 +608,20 @@ void LinkedShader::UpdateUniforms(u32 vertType) {
for (int i = 0; i < 4; i++) {
if (dirty & (DIRTY_LIGHT0 << i)) {
if (u_lightpos[i] != -1) {
if (gstate.isDirectionalLight(i)) {
// Prenormalize
float x = getFloat24(gstate.lpos[i * 3 + 0]);
float y = getFloat24(gstate.lpos[i * 3 + 1]);
float z = getFloat24(gstate.lpos[i * 3 + 2]);
float len = sqrtf(x*x + y*y + z*z);
if (len == 0.0f)
len = 1.0f;
else
len = 1.0f / len;
float vec[3] = { x * len, y * len, z * len };
glUniform3fv(u_lightpos[i], 1, vec);
} else {
SetFloat24Uniform3(u_lightpos[i], &gstate.lpos[i * 3]);
}
if (gstate.isDirectionalLight(i)) {
// Prenormalize
float x = getFloat24(gstate.lpos[i * 3 + 0]);
float y = getFloat24(gstate.lpos[i * 3 + 1]);
float z = getFloat24(gstate.lpos[i * 3 + 2]);
float len = sqrtf(x*x + y*y + z*z);
if (len == 0.0f)
len = 1.0f;
else
len = 1.0f / len;
float vec[3] = { x * len, y * len, z * len };
glUniform3fv(u_lightpos[i], 1, vec);
} else {
SetFloat24Uniform3(u_lightpos[i], &gstate.lpos[i * 3]);
}
if (u_lightdir[i] != -1) SetFloat24Uniform3(u_lightdir[i], &gstate.ldir[i * 3]);
if (u_lightatt[i] != -1) SetFloat24Uniform3(u_lightatt[i], &gstate.latt[i * 3]);