Print done when done.

1 files changed, 99 insertions, 0 deletions

diff --git a/indra/newview/app_settings/shaders/class1/lighting/lightV.glsl b/indra/newview/app_settings/shaders/class1/lighting/lightV.glsl
new file mode 100644
index 0000000000..e3816318a1
--- /dev/null
+++ b/indra/newview/app_settings/shaders/class1/lighting/lightV.glsl
@@ -0,0 +1,99 @@
+
+float calcDirectionalLight(vec3 n, vec3 l)
+{
+	float a = max(dot(n,l),0.0);
+	return a;
+}
+
+float calcPointLight(vec3 v, vec3 n, vec3 l, float r, float pw)
+{
+	//get light vector
+	vec3 lv = l-v;
+	
+	//get distance
+	float d = length(lv);
+	
+	//normalize light vector
+	lv *= 1.0/d;
+	
+	//distance attenuation
+	float da = max((r-d)/r, 0.0);
+	
+	//da = pow(da, pw);
+	
+	//angular attenuation
+	da *= calcDirectionalLight(n, lv);
+	
+	return da;	
+}
+
+float calcDirectionalSpecular(vec3 view, vec3 n, vec3 l)
+{
+	float a = max(dot(n,l),0.0);
+	return a;
+}
+
+float calcDirectionalLightSpecular(inout vec4 specular, vec3 view, vec3 n, vec3 l, vec3 lightCol, float da)
+{
+	
+	specular.rgb += calcDirectionalSpecular(view,n,l)*lightCol*da;
+	return calcDirectionalLight(n,l);
+}
+
+vec3 calcPointLightSpecular(inout vec4 specular, vec3 view, vec3 v, vec3 n, vec3 l, float r, float pw, vec3 lightCol)
+{
+	//get light vector
+	vec3 lv = l-v;
+	
+	//get distance
+	float d = length(lv);
+	
+	//normalize light vector
+	lv *= 1.0/d;
+	
+	//distance attenuation
+	float da = clamp((r-d)/r, 0.0, 1.0);
+
+	//da = pow(da, pw);
+	
+	//angular attenuation
+	da *= calcDirectionalLightSpecular(specular, view, n, lv, lightCol, da);
+	
+	return da*lightCol;	
+}
+
+vec4 calcLighting(vec3 pos, vec3 norm, vec4 color, vec4 baseLight)
+{
+	vec4 col;
+	col.a = color.a;
+	
+	col.rgb = gl_LightModel.ambient.rgb + baseLight.rgb;
+	
+	col.rgb += gl_LightSource[0].diffuse.rgb*calcDirectionalLight(norm, gl_LightSource[0].position.xyz);
+	col.rgb += gl_LightSource[1].diffuse.rgb*calcDirectionalLight(norm, gl_LightSource[1].position.xyz);
+						
+	col.rgb = min(col.rgb*color.rgb, 1.0);
+	
+	return col;	
+}
+
+vec4 calcLighting(vec3 pos, vec3 norm, vec4 color, vec3 baseLight)
+{
+	return calcLighting(pos, norm, color, vec4(baseLight, 1.0));
+}
+
+vec4 calcLighting(vec3 pos, vec3 norm, vec4 color)
+{
+	return calcLighting(pos, norm, color, vec3(0.0,0.0,0.0));
+}
+
+vec4 calcLightingSpecular(vec3 pos, vec3 norm, vec4 color, inout vec4 specularColor, vec4 baseCol)
+{
+	specularColor.rgb = vec3(0.0, 0.0, 0.0);
+	return calcLighting(pos, norm, color, baseCol);
+}
+
+vec4 calcLightingSpecular(vec3 pos, vec3 norm, vec4 color, inout vec4 specularColor, vec3 baseCol)
+{
+	return calcLightingSpecular(pos, norm, color, specularColor, vec4(baseCol, 1.0));
+}