Eevee: Add support for legacy materials node. (not PBR)

3 files changed, 54 insertions, 8 deletions

diff --git a/source/blender/draw/engines/eevee/eevee_engine.c b/source/blender/draw/engines/eevee/eevee_engine.c
index 5f7c7787cfc..825a7b75502 100644
--- a/source/blender/draw/engines/eevee/eevee_engine.c
+++ b/source/blender/draw/engines/eevee/eevee_engine.c
@@ -399,7 +399,7 @@ static void EEVEE_cache_init(void *vedata)
 
 		if (wo && wo->use_nodes && wo->nodetree) {
 			struct GPUMaterial *gpumat = GPU_material_from_nodetree(
-				wo->nodetree, &wo->gpumaterial, &DRW_engine_viewport_eevee_type, 0,
+				scene, wo->nodetree, &wo->gpumaterial, &DRW_engine_viewport_eevee_type, 0,
 			    datatoc_probe_vert_glsl, datatoc_probe_geom_glsl, e_data.frag_shader_lib,
 			    "#define PROBE_CAPTURE\n"
 			    "#define MAX_LIGHT 128\n"
@@ -541,11 +541,44 @@ static void EEVEE_cache_populate(void *vedata, Object *ob)
 				if (ma == NULL)
 					ma = &defmaterial;
 
-				DRWShadingGroup *shgrp = DRW_shgroup_create(e_data.default_lit, psl->material_pass);
-				DRW_shgroup_uniform_vec3(shgrp, "diffuse_col", &ma->r, 1);
-				DRW_shgroup_uniform_vec3(shgrp, "specular_col", &ma->specr, 1);
-				DRW_shgroup_uniform_short(shgrp, "hardness", &ma->har, 1);
-				DRW_shgroup_call_add(shgrp, mat_geom[i], ob->obmat);
+				if (ma->use_nodes && ma->nodetree) {
+					const DRWContextState *draw_ctx = DRW_context_state_get();
+					Scene *scene = draw_ctx->scene;
+					struct GPUMaterial *gpumat = GPU_material_from_nodetree(
+					    scene, ma->nodetree, &ma->gpumaterial, &DRW_engine_viewport_eevee_type, 0,
+					    datatoc_lit_surface_vert_glsl, NULL, e_data.frag_shader_lib,
+					    "#define PROBE_CAPTURE\n"
+					    "#define MAX_LIGHT 128\n"
+					    "#define MAX_SHADOW_CUBE 42\n"
+					    "#define MAX_SHADOW_MAP 64\n"
+					    "#define MAX_SHADOW_CASCADE 8\n"
+					    "#define MAX_CASCADE_NUM 4\n");
+
+					DRWShadingGroup *shgrp = DRW_shgroup_material_create(gpumat, psl->material_pass);
+
+					if (shgrp) {
+						DRW_shgroup_call_add(shgrp, mat_geom[i], ob->obmat);
+					}
+					else {
+						/* Shader failed : pink color */
+						static float col[3] = {1.0f, 0.0f, 1.0f};
+						static float spec[3] = {1.0f, 0.0f, 1.0f};
+						static short hardness = 1;
+						shgrp = DRW_shgroup_create(e_data.default_lit, psl->default_pass);
+						DRW_shgroup_uniform_vec3(shgrp, "diffuse_col", col, 1);
+						DRW_shgroup_uniform_vec3(shgrp, "specular_col", spec, 1);
+						DRW_shgroup_uniform_short(shgrp, "hardness", &hardness, 1);
+						DRW_shgroup_call_add(shgrp, mat_geom[i], ob->obmat);
+					}
+				}
+				else {
+					DRWShadingGroup *shgrp = DRW_shgroup_create(e_data.default_lit, psl->default_pass);
+					DRW_shgroup_uniform_vec3(shgrp, "diffuse_col", &ma->r, 1);
+					DRW_shgroup_uniform_vec3(shgrp, "specular_col", &ma->specr, 1);
+					DRW_shgroup_uniform_short(shgrp, "hardness", &ma->har, 1);
+					DRW_shgroup_call_add(shgrp, mat_geom[i], ob->obmat);
+				}
+
 			}
 		}
 		else {
@@ -555,7 +588,6 @@ static void EEVEE_cache_populate(void *vedata, Object *ob)
 			eevee_cascade_shadow_shgroup(psl, stl, geom, ob->obmat);
 			eevee_cube_shadow_shgroup(psl, stl, geom, ob->obmat);
 		}
-
 		// GPUMaterial *gpumat = GPU_material_from_nodetree(struct bNodeTree *ntree, ListBase *gpumaterials, void *engine_type, int options)
 
 		// DRW_shgroup_call_add(stl->g_data->shadow_shgrp, geom, ob->obmat);
diff --git a/source/blender/draw/engines/eevee/shaders/lit_surface_frag.glsl b/source/blender/draw/engines/eevee/shaders/lit_surface_frag.glsl
index 10d9ce7c4c0..9b8963ef798 100644
--- a/source/blender/draw/engines/eevee/shaders/lit_surface_frag.glsl
+++ b/source/blender/draw/engines/eevee/shaders/lit_surface_frag.glsl
@@ -26,7 +26,9 @@ layout(std140) uniform shadow_block {
 };
 
 in vec3 worldPosition;
+in vec3 viewPosition;
 in vec3 worldNormal;
+in vec3 viewNormal;
 
 /* type */
 #define POINT    0.0
diff --git a/source/blender/draw/engines/eevee/shaders/lit_surface_vert.glsl b/source/blender/draw/engines/eevee/shaders/lit_surface_vert.glsl
index d0a5ee06694..4dd6bb1e287 100644
--- a/source/blender/draw/engines/eevee/shaders/lit_surface_vert.glsl
+++ b/source/blender/draw/engines/eevee/shaders/lit_surface_vert.glsl
@@ -1,16 +1,28 @@
 
 uniform mat4 ModelViewProjectionMatrix;
 uniform mat4 ModelMatrix;
+uniform mat4 ModelViewMatrix;
 uniform mat3 WorldNormalMatrix;
+#ifndef ATTRIB
+uniform mat3 NormalMatrix;
+#endif
 
 in vec3 pos;
 in vec3 nor;
 
 out vec3 worldPosition;
+out vec3 viewPosition;
 out vec3 worldNormal;
+out vec3 viewNormal;
 
 void main() {
 	gl_Position = ModelViewProjectionMatrix * vec4(pos, 1.0);
+	viewPosition = (ModelViewMatrix * vec4(pos, 1.0)).xyz;
 	worldPosition = (ModelMatrix * vec4(pos, 1.0)).xyz;
-	worldNormal = WorldNormalMatrix * nor;
+	viewNormal = normalize(NormalMatrix * nor);
+	worldNormal = normalize(WorldNormalMatrix * nor);
+
+#ifdef ATTRIB
+	pass_attrib();
+#endif
 }
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