Merge pull request #942 from secondlife/geenz/mirrors-quality-pass-1

#681 Mirrors quality pass 1.

2 files changed, 7 insertions, 0 deletions

diff --git a/indra/newview/app_settings/shaders/class1/deferred/pbrterrainF.glsl b/indra/newview/app_settings/shaders/class1/deferred/pbrterrainF.glsl
index c83a6be85d..57c0a6024f 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/pbrterrainF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/pbrterrainF.glsl
@@ -133,6 +133,7 @@ uniform vec4 minimum_alphas; // PBR alphaMode: MASK, See: mAlphaCutoff, setAlpha
 #if TERRAIN_PLANAR_TEXTURE_SAMPLE_COUNT == 3
 in vec4[2] vary_coords;
 #endif
+in vec3 vary_position;
 in vec3 vary_normal;
 in vec3 vary_tangent;
 flat in float vary_sign;
@@ -140,11 +141,14 @@ in vec4 vary_texcoord0;
 in vec4 vary_texcoord1;
 
 vec2 encode_normal(vec3 n);
+void mirrorClip(vec3 position);
 
 float terrain_mix(TerrainMix tm, vec4 tms4);
 
 void main()
 {
+    // Make sure we clip the terrain if we're in a mirror.
+    mirrorClip(vary_position);
 
 #if TERRAIN_PLANAR_TEXTURE_SAMPLE_COUNT == 3
     TerrainCoord terrain_texcoord = vary_coords;
diff --git a/indra/newview/app_settings/shaders/class1/deferred/pbrterrainV.glsl b/indra/newview/app_settings/shaders/class1/deferred/pbrterrainV.glsl
index dbb9404219..489fc26e3f 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/pbrterrainV.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/pbrterrainV.glsl
@@ -25,6 +25,7 @@
 
 uniform mat3 normal_matrix;
 uniform mat4 texture_matrix0;
+uniform mat4 modelview_matrix;
 uniform mat4 modelview_projection_matrix;
 
 in vec3 position;
@@ -42,6 +43,7 @@ out vec3 vary_tangent;
 flat out float vary_sign;
 out vec4 vary_texcoord0;
 out vec4 vary_texcoord1;
+out vec3 vary_position;
 
 // *HACK: tangent_space_transform should use texture_normal_transform, or maybe
 // we shouldn't use tangent_space_transform at all. See the call to
@@ -55,6 +57,7 @@ void main()
 {
     //transform vertex
 	gl_Position = modelview_projection_matrix * vec4(position.xyz, 1.0); 
+    vary_position = (modelview_matrix*vec4(position.xyz, 1.0)).xyz;
 
 	vec3 n = normal_matrix * normal;
     vary_vertex_normal = normal;