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Platform: lightmapped.glsl should have a primitive VERTEXLIT path now.

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This commit is contained in:
Marco Cawthorne 2022-05-20 12:02:20 -07:00
parent bb2b7dbddf
commit 8e96fb27c6
Signed by: eukara
GPG key ID: CE2032F0A2882A22
1 changed files with 18 additions and 1 deletions
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19
platform/base_glsl.pk3dir/glsl/lightmapped.glsl
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@ -61,6 +61,8 @@ varying vec3 eyevector;
varying mat3 invsurface;
#endif
varying vec3 norm;
#ifdef VERTEX_SHADER
void lightmapped_init(void)
{
@ -92,6 +94,7 @@ varying mat3 invsurface;
invsurface[1] = v_tvector;
invsurface[2] = v_normal;
#endif
norm = v_normal;
}
#endif
@ -154,6 +157,11 @@ varying mat3 invsurface;
}
#endif
float lambert(vec3 normal, vec3 dir)
{
return max(dot(normal, dir), 0.0);
}
void main (void)
{
vec4 diffuse_f;
@ -208,6 +216,15 @@ varying mat3 invsurface;
diffuse_f.rgb += texture2D(s_fullbright, tex_c).rgb;
#endif
#if defined (VERTEXLIT)
vec3 light;
/* directional light */
light = (vec3(0.5,0.5,0.5) * lambert(norm, vec3(-1,-0.5,0.5))) * 2.0;
light += (vec3(0.25,0.25,0.25) * lambert(norm, reflect(norm, vec3(0.75, 0, 0)))) * 0.5;
light *= 2.0;
diffuse_f.rgb = texture2D(s_diffuse, tex_c).rgb * light;
#endif
// start blend at half-way point
alpha = vex_color.a * 1.5;
@ -216,7 +233,7 @@ varying mat3 invsurface;
#if defined(UPPERLOWER)
diffuse_f.rgb *= texture2D(s_upper, tex_c * 4.0).rgb;
diffuse_f.rgb *= (texture2D(s_upper, tex_c * 4.0).rgb + 0.5);
#endif
gl_FragColor = vec4(fog3(diffuse_f.rgb), alpha);