Chams: apply model-safe styles to the viewmodel

The viewmodel was always solid. Use the selected style material for the
model-debug styles (wireframe/solid/white/fullbright); Flat and Additive use
the solid model shader with the same flags because their VGUI materials do not
draw skinned models.

1 files changed, 11 insertions, 5 deletions

diff --git a/src/studio.cpp b/src/studio.cpp
index f815c16..b428a26 100644
--- a/src/studio.cpp
+++ b/src/studio.cpp
@@ -285,12 +285,18 @@ void hkdModelExecute(void *self, const void *state, const void *info,
       bool is_npc = esp_is_npc_index(idx);
       bool is_vm = g_chams_viewmodel && esp_is_viewmodel_index(idx);
       if (is_npc || is_vm) {
-        void *mat = is_vm ? viewmodel_material() : chams_material();
+        int style = g_chams_mat_index;
+        if (style < 0) style = 0;
+        if (style > 5) style = 5;
+        // VGUI materials do not draw skinned models: use the solid model
+        // shader for the viewmodel with the same flags (flat/additive).
+        bool vgui_style = (style == 0 || style == 2);
+        void *mat = (is_vm && vgui_style) ? viewmodel_material()
+                                          : chams_material();
+        if (!mat)
+          mat = viewmodel_material();
         if (mat) {
-          int style = is_vm ? 3 : g_chams_mat_index;
-          if (style < 0) style = 0;
-          if (style > 5) style = 5;
-          bool white = !is_vm && style == 4;
+          bool white = style == 4;
           if (g_chams_walls && !is_vm) {
             chams_apply(mat, true, style, white);
             g_force_override(self, mat, 0 /* OVERRIDE_NORMAL */);