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Diffuse should be ignored if lighting is enabled

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This commit is contained in:
Luke Benstead 2018-05-13 09:00:38 +01:00
parent c76338b16f
commit ab11a02056
1 changed files with 11 additions and 15 deletions
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26
GL/draw.c
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@ -197,27 +197,23 @@ static void submitVertices(GLenum mode, GLsizei first, GLsizei count, GLenum typ
}
if(lighting_enabled) {
GLfloat contribution[4];
uint32 to_add;
/* We ignore diffuse colour when lighting is enabled. If GL_COLOR_MATERIAL is enabled
* then the lighting calculation should possibly take it into account */
GLfloat contribution [] = {0.0f, 0.0f, 0.0f, 0.0f};
GLfloat to_add [] = {0.0f, 0.0f, 0.0f, 0.0f};
for(GLubyte i = 0; i < MAX_LIGHTS; ++i) {
if(isLightEnabled(i)) {
calculateLightingContribution(i, &vertex->x, normal, contribution);
to_add = PVR_PACK_COLOR(contribution[3], contribution[0], contribution[1], contribution[2]);
calculateLightingContribution(i, &vertex->x, normal, to_add);
GLubyte a = ((vertex->argb & 0xFF000000) >> 24) + ((to_add & 0xFF000000) >> 24);
GLubyte r = ((vertex->argb & 0x00FF0000) >> 16) + ((to_add & 0x00FF0000) >> 16);
GLubyte g = ((vertex->argb & 0x0000FF00) >> 8) + ((to_add & 0x0000FF00) >> 8);
GLubyte b = ((vertex->argb & 0x000000FF) >> 0) + ((to_add & 0x000000FF) >> 0);
a = (a > 255) ? 255 : a;
r = (r > 255) ? 255 : r;
g = (g > 255) ? 255 : g;
b = (b > 255) ? 255 : b;
vertex->argb = a << 24 | r << 16 | g << 8 | b;
contribution[0] += to_add[0];
contribution[1] += to_add[1];
contribution[2] += to_add[2];
contribution[3] += to_add[3];
}
}
vertex->argb = PVR_PACK_COLOR(contribution[3], contribution[0], contribution[1], contribution[2]);
}
++dst;