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added overall_alpha parameter to alpha_over, speeding up lighting

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This commit is contained in:
Aaron Griffith
2011-03-26 21:52:16 -04:00
parent 0fe9c7c050
commit 1f27ccb9be
3 changed files with 39 additions and 60 deletions
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9
src/rendermode-lighting.c
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@@ -135,9 +135,8 @@ get_lighting_coefficient(RenderModeLighting *self, RenderState *state,
lighting results from (x, y, z) */
static inline void
do_shading_with_mask(RenderModeLighting *self, RenderState *state,
int x, int y, int z, PyObject *facemask) {
int x, int y, int z, PyObject *mask) {
float black_coeff;
PyObject *mask;
/* first, check for occlusion if the block is in the local chunk */
if (x >= 0 && x < 16 && y >= 0 && y < 16 && z >= 0 && z < 128) {
@@ -149,11 +148,7 @@ do_shading_with_mask(RenderModeLighting *self, RenderState *state,
}
black_coeff = get_lighting_coefficient(self, state, x, y, z, NULL);
mask = PyObject_CallMethod(facemask, "copy", NULL); // new ref
brightness(mask, black_coeff);
alpha_over(state->img, self->black_color, mask, state->imgx, state->imgy, 0, 0);
Py_DECREF(mask);
alpha_over_full(state->img, self->black_color, mask, black_coeff, state->imgx, state->imgy, 0, 0);
}
static int