ShaderGenerator: Fix unused F_hardware_animation flag

panda/src/pgraphnodes/shaderGenerator.cxx

@@ -1165,12 +1165,12 @@ synthesize_shader(const RenderState *rs, const GeomVertexAnimationSpec &anim) {
       lightcoord_fregs.push_back(nullptr);
     }
   }
-  if (key._flags & ShaderKey::F_hardware_animation) {
+  if (key._num_anim_transforms != 0) {
     int num_transforms = key._num_anim_transforms;
     text << "\t uniform float3x4 tbl_transforms[" << num_transforms << "],\n";
     text << "\t in float4 vtx_transform_weight : BLENDWEIGHT,\n";
     if (key._flags & ShaderKey::F_indexed_transforms) {
-      text << "\t in uint4 vtx_transform_index : BLENDINDICES,\n";
+      text << "\t in int4 vtx_transform_index : BLENDINDICES,\n";
     }
   }
   if (need_point_size) {
@@ -1182,9 +1182,9 @@ synthesize_shader(const RenderState *rs, const GeomVertexAnimationSpec &anim) {
   text << "\t uniform float4x4 mat_modelproj\n";
   text << ") {\n";
 
-  if (key._flags & ShaderKey::F_hardware_animation) {
+  if (key._num_anim_transforms != 0) {
     if ((key._flags & ShaderKey::F_indexed_transforms) == 0) {
-      text << "\t const uint4 vtx_transform_index = uint4(0, 1, 2, 3);\n";
+      text << "\t const int4 vtx_transform_index = int4(0, 1, 2, 3);\n";
     }
 
     text << "\t float3x4 vtxmat = tbl_transforms[vtx_transform_index.x] * vtx_transform_weight.x";

panda/src/pgraphnodes/shaderGenerator.h

@@ -114,14 +114,13 @@ protected:
       F_out_alpha_glow        = 0x080000,
       F_out_aux_normal        = 0x100000,
       F_out_aux_glow          = 0x200000,
-      F_hardware_animation    = 0x400000,
+      F_perspective_points    = 0x400000,
       F_indexed_transforms    = 0x800000,
 
       F_ALPHA_TEST_SHIFT      = 24,
       F_ALPHA_TEST_MASK       = 0x07000000,
 
       F_use_shadow_filter     = 0x08000000,
-      F_perspective_points    = 0x10000000,
     };
 
     enum TextureFlags {