Polygon-mode, better shader-compile-error log, material variable 'casts_shadow'

renderer.odin

@@ -17,6 +17,8 @@ Renderer :: struct {
     vsync: bool,
     backend: rawptr,
 
+    polygon_mode: Polygon_Mode,
+
     pipeline: Pipeline,
 
     active_camera: ^Camera, // NOTE: SS - Hardcoded to 1 active camera. Split-screen is likely not possible due to this. Fix(?).
@@ -26,6 +28,12 @@ Renderer :: struct {
     fullscreen_mesh: Mesh,
 }
 
+Polygon_Mode :: enum {
+    Fill,
+    Line,
+    Point,
+}
+
 Viewport :: struct {
     x, y, width, height: u16,
 }
@@ -155,6 +163,8 @@ render_frame :: proc(renderer: ^Renderer, texture_to_present: ^Texture, clear_co
         execute_pass(renderer, renderer.pipeline.passes[i], camera_view_matrix, camera_projection_matrix)
     }
     
+    apply_polygon_mode(renderer, .Fill)
+
     if texture_to_present != nil { // Present.
         // Bind to the screen.
         bind_render_target(renderer, nil)
@@ -192,7 +202,7 @@ render_frame :: proc(renderer: ^Renderer, texture_to_present: ^Texture, clear_co
     }
 }
 
-execute_pass :: proc(renderer: ^Renderer, pass: ^Pass, view_matrix, projection_matrix: linalg.Matrix4x4f32) {
+execute_pass :: proc(renderer: ^Renderer, pass: ^Pass, view_matrix, projection_matrix: linalg.Matrix4x4f32) { // TODO: SS - Move to 'pass.odin'.
     // fmt.printfln("Executing pass '%v'.", pass.name)
     
     assert(renderer != nil)
@@ -200,6 +210,8 @@ execute_pass :: proc(renderer: ^Renderer, pass: ^Pass, view_matrix, projection_m
     
     switch &t in &pass.type {
         case Scene_Pass: {
+            apply_polygon_mode(renderer, renderer.polygon_mode)
+            
             assert(t.output_rt != nil)
             bind_render_target(renderer, t.output_rt)
             defer bind_render_target(renderer, nil)
@@ -246,6 +258,7 @@ execute_pass :: proc(renderer: ^Renderer, pass: ^Pass, view_matrix, projection_m
 
             // TODO: SS - "Deactivate" the pass?
 
+            apply_polygon_mode(renderer, .Fill)
         }
         case Post_Processing_Pass: {
             // Execute the post-processing nodes.
@@ -477,4 +490,12 @@ distance_to_camera :: proc(camera: ^Camera, position: [3]f32) -> f32 {
     when RENDER_BACKEND_OPENGL {
         opengl_deactivate_fullscreen_material()
     }
+}
+
+@(private) apply_polygon_mode :: proc(renderer: ^Renderer, mode: Polygon_Mode) {
+    assert(renderer != nil)
+
+    when RENDER_BACKEND_OPENGL {
+        opengl_apply_polygon_mode(renderer, mode)
+    }
 }