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port: fix model lighting

This commit is contained in:
fgsfds 2023-08-20 16:26:21 +02:00
parent f1186a35d8
commit e0ced73d8a
1 changed files with 2 additions and 7 deletions
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9
port/fast3d/gfx_pc.cpp
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@ -1014,11 +1014,6 @@ static void gfx_adjust_width_height_for_scale(uint32_t& width, uint32_t& height)
static void gfx_sp_vertex(size_t n_vertices, size_t dest_index, const Vtx* vertices) {
SUPPORT_CHECK(n_vertices <= MAX_VERTICES);
// seems like PD likes to use fog color/alpha without enabling G_FOG
const bool use_fog = (rsp.geometry_mode & G_FOG) ||
(rdp.other_mode_l >> 30) == G_BL_CLR_FOG ||
(rdp.other_mode_l >> 26) == G_BL_A_FOG;
for (size_t i = 0; i < n_vertices; i++, dest_index++) {
const Vtx* v = &vertices[i];
struct LoadedVertex* d = &rsp.loaded_vertices[dest_index];
@ -1138,7 +1133,7 @@ static void gfx_sp_vertex(size_t n_vertices, size_t dest_index, const Vtx* verti
d->z = z;
d->w = w;
if (use_fog) {
if (rsp.geometry_mode & G_FOG) {
if (fabsf(w) < 0.001f) {
// To avoid division by zero
w = 0.001f;
@ -1152,7 +1147,7 @@ static void gfx_sp_vertex(size_t n_vertices, size_t dest_index, const Vtx* verti
float fog_z = z * winv * rsp.fog_mul + rsp.fog_offset;
d->fog = clampf(fog_z, 0.f, 255.f);
} else {
d->fog = 0;
d->fog = rdp.fog_color.a;
}
d->color.a = vcn->a; // can be required for SHADE_ALPHA even if fog is enabled