Fix T64363 Eevee: Texture coordinates node turns material color to pink

Sorry for that :(

2 files changed, 3 insertions, 6 deletions

diff --git a/source/blender/gpu/shaders/gpu_shader_material.glsl b/source/blender/gpu/shaders/gpu_shader_material.glsl
index 59eb463635e..37e03be7be3 100644
--- a/source/blender/gpu/shaders/gpu_shader_material.glsl
+++ b/source/blender/gpu/shaders/gpu_shader_material.glsl
@@ -2086,6 +2086,7 @@ void generated_texco(vec3 I, vec3 attr_orco, out vec3 generated)
 
 void node_tex_coord(vec3 I,
                     vec3 wN,
+                    mat4 obmatinv,
                     vec4 camerafac,
                     vec3 attr_orco,
                     vec3 attr_uv,
@@ -2100,7 +2101,7 @@ void node_tex_coord(vec3 I,
   generated = attr_orco;
   normal = normalize(transform_normal_world_to_object(wN));
   uv = attr_uv;
-  object = transform_point_view_to_object(I);
+  object = (obmatinv * (ViewMatrixInverse * vec4(I, 1.0))).xyz;
   camera = vec3(I.xy, -I.z);
   vec4 projvec = ProjectionMatrix * vec4(I, 1.0);
   window = vec3(mtex_2d_mapping(projvec.xyz / projvec.w).xy * camerafac.xy + camerafac.zw, 0.0);
@@ -2109,6 +2110,7 @@ void node_tex_coord(vec3 I,
 
 void node_tex_coord_background(vec3 I,
                                vec3 N,
+                               mat4 obmatinv,
                                vec4 camerafac,
                                vec3 attr_orco,
                                vec3 attr_uv,
diff --git a/source/blender/nodes/shader/nodes/node_shader_tex_coord.c b/source/blender/nodes/shader/nodes/node_shader_tex_coord.c
index eed53f5c286..0e34f2ca9b1 100644
--- a/source/blender/nodes/shader/nodes/node_shader_tex_coord.c
+++ b/source/blender/nodes/shader/nodes/node_shader_tex_coord.c
@@ -42,10 +42,6 @@ static int node_shader_gpu_tex_coord(GPUMaterial *mat,
 {
   Object *ob = (Object *)node->id;
 
-  if (ob != NULL) {
-    invert_m4_m4(ob->imat, ob->obmat);
-  }
-
   GPUNodeLink *inv_obmat = (ob != NULL) ? GPU_uniform(&ob->imat[0][0]) :
                                           GPU_builtin(GPU_INVERSE_OBJECT_MATRIX);
 
@@ -61,7 +57,6 @@ static int node_shader_gpu_tex_coord(GPUMaterial *mat,
                         out,
                         GPU_builtin(GPU_VIEW_POSITION),
                         GPU_builtin(GPU_WORLD_NORMAL),
-                        GPU_builtin(GPU_INVERSE_VIEW_MATRIX),
                         inv_obmat,
                         GPU_builtin(GPU_CAMERA_TEXCO_FACTORS),
                         orco,