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TINYGL: Implemented alpha interpolation in triangle rasterization routine.

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This commit is contained in:
Stefano Musumeci 2014-06-19 17:30:28 +02:00
parent 03072c4b7b
commit 63fd685589
13 changed files with 320 additions and 163 deletions
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3
graphics/tinygl/clip.cpp
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@ -29,11 +29,14 @@ void gl_transform_to_viewport(GLContext *c, GLVertex *v) {
+ ZB_POINT_GREEN_MIN);
v->zp.b = (int)(v->color.Z * (ZB_POINT_BLUE_MAX - ZB_POINT_BLUE_MIN)
+ ZB_POINT_BLUE_MIN);
v->zp.a = (int)(v->color.W * (ZB_POINT_ALPHA_MAX - ZB_POINT_ALPHA_MIN)
+ ZB_POINT_ALPHA_MIN);
} else {
// no need to convert to integer if no lighting : take current color
v->zp.r = c->longcurrent_color[0];
v->zp.g = c->longcurrent_color[1];
v->zp.b = c->longcurrent_color[2];
v->zp.a = c->longcurrent_color[3];
}
// texture