output: fix regression in Output_InsertPoly_Gouraud

Resolves #64
LostArtefacts · Apr 27, 2024 · 02ce33d · 02ce33d
1 parent 03f0367
commit 02ce33d
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -1,4 +1,5 @@
 ## [Unreleased](https://github.com/LostArtefacts/TR2X/compare/stable...develop) - ××××-××-××
+- fixed Lara's shadow with z-buffer option on (#64, regression from 0.1)
 
 ## [0.1](https://github.com/rr-/TR2X/compare/...0.1) - 2024-04-26
 - added version string to the inventory

diff --git a/src/game/output.c b/src/game/output.c
@@ -3399,7 +3399,7 @@ const int16_t *__cdecl Output_InsertObjectG4_Sorted(
         }
 
         int32_t num_points = 4;
-        PHD_VBUF *const vtx[4] = {
+        const PHD_VBUF *const vtx[4] = {
             &g_PhdVBuf[*obj_ptr++],
             &g_PhdVBuf[*obj_ptr++],
             &g_PhdVBuf[*obj_ptr++],
@@ -4147,9 +4147,9 @@ void __cdecl Output_InsertPoly_Gouraud(
         g_HWR_VertexPtr[i].sy = g_VBuffer[i].y;
         if (g_SavedAppSettings.zbuffer) {
             g_HWR_VertexPtr[i].sz =
-                g_FltResZBuf - g_FltResZORhw * g_VBuffer[0].rhw;
+                g_FltResZBuf - g_FltResZORhw * g_VBuffer[i].rhw;
         }
-        g_HWR_VertexPtr[i].rhw = g_VBuffer[0].rhw;
+        g_HWR_VertexPtr[i].rhw = g_VBuffer[i].rhw;
         g_HWR_VertexPtr[i].color = Output_ShadeLightColor(
             g_VBuffer[i].g, red, green, blue,
             poly_type == POLY_HWR_TRANS ? 0x80 : 0xFF);