Fix shaders on some GPUs

1 files changed, 8 insertions, 3 deletions

diff --git a/client/shaders/alpha_shader/opengl_fragment.glsl b/client/shaders/alpha_shader/opengl_fragment.glsl
index e72c1b9a6..3c0f35eae 100644
--- a/client/shaders/alpha_shader/opengl_fragment.glsl
+++ b/client/shaders/alpha_shader/opengl_fragment.glsl
@@ -21,14 +21,16 @@ const float e = 2.718281828459;
 

 void main (void)

 {

-	float use_normalmap = texture2D(useNormalmap,vec2(1.0,1.0)).r;

-	float enable_bumpmapping = enableBumpmapping;

-

 	vec3 color;

 	vec2 uv = gl_TexCoord[0].st;

+	

+#ifdef NORMALS

 	float height;

 	vec2 tsEye = vec2(tsEyeVec.x,-tsEyeVec.y);

 	

+	float use_normalmap = texture2D(useNormalmap,vec2(1.0,1.0)).r;

+	float enable_bumpmapping = enableBumpmapping;

+	

 	if ((enableParallaxOcclusion == 1.0) && (use_normalmap > 0.0)) {

 		float map_height = texture2D(normalTexture, uv).a;

 			if (map_height < 1.0){

@@ -49,6 +51,9 @@ void main (void)
 	} else {

 		color = texture2D(baseTexture, uv).rgb;

 	}

+#else

+	color = texture2D(baseTexture, uv).rgb;

+#endif

 

 	float alpha = texture2D(baseTexture, uv).a;

 	vec4 col = vec4(color.r, color.g, color.b, alpha);