BI Viewport(GLSL): support for envmap in Texture node

This patch is another step to achieve BI and it's Viewport consistency for cubemap textures.
{F318879}

To test world_space_shading flag D2072 is required.

Alexander (Blend4Web Team)

Reviewers: campbellbarton, brecht

Subscribers: homyachetser, Evgeny_Rodygin, AlexKowel, yurikovelenov

Differential Revision: https://developer.blender.org/D2074

1 files changed, 7 insertions, 0 deletions

diff --git a/source/blender/gpu/shaders/gpu_shader_material.glsl b/source/blender/gpu/shaders/gpu_shader_material.glsl
index 02e9ba1c8c3..f3bd817a7cc 100644
--- a/source/blender/gpu/shaders/gpu_shader_material.glsl
+++ b/source/blender/gpu/shaders/gpu_shader_material.glsl
@@ -1358,6 +1358,13 @@ void mtex_cube_map(vec3 co, samplerCube ima, out float value, out vec4 color)
 	value = 1.0;
 }
 
+void mtex_cube_map_refl_from_refldir(
+        samplerCube ima, vec3 reflecteddirection, out float value, out vec4 color)
+{
+        color = textureCube(ima, reflecteddirection);
+        value = 1.0;
+}
+
 void mtex_cube_map_refl(
         samplerCube ima, vec3 vp, vec3 vn, mat4 viewmatrixinverse, mat4 viewmatrix,
         out float value, out vec4 color)