Support for Unlit vertex colors

Author: matthewcpp

include/framework64/mesh.h

@@ -9,7 +9,7 @@
 
 typedef enum {
     SHADING_MODE_UNSET,
-    SHADING_MODE_UNLIT,
+    SHADING_MODE_UNLIT_VERTEX_COLORS,
     SHADING_MODE_UNLIT_TEXTURED,
     SHADING_MODE_GOURAUD,
     SHADING_MODE_GOURAUD_TEXTURED,

src/n64/renderer.c

@@ -141,6 +141,8 @@ static void renderer_set_shading_mode(Renderer* renderer, ShadingMode shading_mo
     renderer->shading_mode = shading_mode;
 
     switch(renderer->shading_mode) {
+        case SHADING_MODE_UNLIT_TEXTURED:
+            break;
         case SHADING_MODE_GOURAUD:
             gSPSetGeometryMode(renderer->display_list++, G_LIGHTING)
             gDPSetCombineMode(renderer->display_list++, G_CC_SHADE, G_CC_SHADE);

tools/asset_pipeline/GLTFLoader.js

@@ -213,6 +213,8 @@ class GLTFLoader {
 
             offset += byteStride;
         }
+
+        n64Mesh.hasVertexColors = true;
     }
 
     _readNormals(gltfPrimitive, n64Mesh) {

tools/asset_pipeline/N64Mesh.js

@@ -43,6 +43,7 @@ class N64Mesh {
     material = 0;
     hasNormals = false;
     hasTexCoords = false;
+    hasVertexColors = false;
 
     bounding = new Bounding();
 

tools/asset_pipeline/N64ModelWriter.js

@@ -291,6 +291,7 @@ class PrimitiveInfo {
 }
 
 const ShadingMode  = {
+    UnlitVertexColors: 1,
     Gouraud: 3,
     GouraudTextured: 4
 }
@@ -301,6 +302,9 @@ function getShadingMode(primitive, model){
     if (primitive.hasNormals) {
         return material.texture !== N64Material.NoTexture ? ShadingMode.GouraudTextured: ShadingMode.Gouraud;
     }
+    else if (primitive.hasVertexColors) {
+        return ShadingMode.UnlitVertexColors;
+    }
 
     throw new Error(`Could not determine shading mode for mesh in model: ${model.name}`);
 }