fix some GLSL warnings

git-svn-id: svn://svn.icculus.org/twilight/trunk/darkplaces@10966 d7cf8633-e32d-0410-b094-e92efae38249

diff --git a/shader_glsl.h b/shader_glsl.h
index 673c6a99de86383f0e0ea06e5d9be690a6cbca31..b9f5abf51b8acee285fdfe2edd7a2905ef2eba73 100644 (file)
--- a/shader_glsl.h
+++ b/shader_glsl.h
@@ -703,7 +703,7 @@
 "\n"
 "#  ifdef USESHADOWSAMPLER\n"
 "#    ifdef USESHADOWMAPPCF\n"
-"#      define texval(x, y) dp_shadow2D(Texture_ShadowMap2D, vec3(center + vec2(x, y)*ShadowMap_TextureScale, shadowmaptc.z)).r  \n"
+"#      define texval(x, y) float(dp_shadow2D(Texture_ShadowMap2D, vec3(center + vec2(x, y)*ShadowMap_TextureScale, shadowmaptc.z)))  \n"
 "      vec2 center = shadowmaptc.xy*ShadowMap_TextureScale;\n"
 "      f = dot(vec4(0.25), vec4(texval(-0.4, 1.0), texval(-1.0, -0.4), texval(0.4, -1.0), texval(1.0, 0.4)));\n"
 "#    else\n"