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ReignEngine: Fix BackCG issues

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- Enable both alpha map and alpha mod, using the new drawing function
  gfx_copy_stretch_blend_amap_alpha().
- Do not draw if `bcg->show` flag is false.
- Do not WARNING() for SetBackCGNum(0) as it's used to unload the CG.
This commit is contained in:
kichikuou
2022-09-11 21:08:54 +09:00
parent c30225d535
commit 803bb1a8a4
4 changed files with 20 additions and 2 deletions
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src/3d/reign.c
+3
View File
@@ -888,6 +888,9 @@ bool RE_back_cg_set(struct RE_back_cg *bcg, int no)
bcg->no = no;
gfx_delete_texture(&bcg->texture);
if (!no) // unload only.
return true;
struct cg *cg = asset_cg_load(no);
if (!cg) {
WARNING("cannot load back CG: %d", no);
src/3d/renderer.c
+2 -2
View File
@@ -505,11 +505,11 @@ static void render_shadow_map(struct RE_plugin *plugin, mat4 light_space_transfo
static void render_back_cg(struct texture *dst, struct RE_back_cg *bcg, struct RE_renderer *r)
{
if (!bcg->texture.handle)
if (!bcg->show || !bcg->texture.handle)
return;
int sw = bcg->texture.w;
int sh = bcg->texture.h;
gfx_copy_stretch_blend(dst, bcg->x, bcg->y, sw * bcg->mag, sh * bcg->mag, &bcg->texture, 0, 0, sw, sh, bcg->blend_rate * 255);
gfx_copy_stretch_blend_amap_alpha(dst, bcg->x, bcg->y, sw * bcg->mag, sh * bcg->mag, &bcg->texture, 0, 0, sw, sh, bcg->blend_rate * 255);
}
static void setup_lights(struct RE_plugin *plugin)