From cf16fd29381cf67542f741f8de4ff017b167819e Mon Sep 17 00:00:00 2001
From: Hannu Hanhi <hhanhipublic@gmail.com>
Date: Sun, 13 Jun 2021 17:56:11 +0300
Subject: [PATCH] Fix custom shaders that define only one stage, like footfix
---
src/hardware/hw_shaders.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/src/hardware/hw_shaders.c b/src/hardware/hw_shaders.c
index e286242266..c341577eb9 100644
--- a/src/hardware/hw_shaders.c
+++ b/src/hardware/hw_shaders.c
@@ -834,6 +834,12 @@ skip_field:
{
int shader_index = i + NUMSHADERTARGETS; // index to gl_shaders
gl_shadertargets[i].custom_shader = shader_index;
+ // if only one stage (vertex/fragment) is defined, the other one
+ // is copied from the base shaders.
+ if (!gl_shaders[shader_index].fragment)
+ gl_shaders[shader_index].fragment = Z_StrDup(gl_shadersources[i].fragment);
+ if (!gl_shaders[shader_index].vertex)
+ gl_shaders[shader_index].vertex = Z_StrDup(gl_shadersources[i].vertex);
HWR_CompileShader(shader_index);
if (!gl_shaders[shader_index].compiled)
CONS_Alert(CONS_ERROR, "HWR_LoadCustomShadersFromFile: A compilation error occured for the %s shader in file %s. See the console messages above for more information.\n", shaderxlat[i].type, wadfiles[wadnum]->filename);
--
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