Allowed setting uniforms in shader

pass.odin

@@ -1,5 +1,6 @@
 package renderer
 
+import "core:math/linalg"
 import "core:fmt"
 
 MAX_DRAW_COMMANDS_CAPACITY :: 4096
@@ -28,8 +29,35 @@ Post_Processing_Pass :: struct {
     post_processing_nodes: [dynamic]Post_Processing_Node, // These nodes are executed after all commands have been drawn onto the render-target.
 }
 
+Uniform :: union {
+    Uniform_Texture,
+    Uniform_Float,
+    Uniform_Matrix4f32,
+    Uniform_Vector3,
+}
+
+Uniform_Texture :: struct {
+    index: u8,
+    value: ^Texture,
+}
+
+Uniform_Float :: struct {
+    name: string,
+    value: ^f32,
+}
+
+Uniform_Matrix4f32 :: struct {
+    name: string,
+    value: ^linalg.Matrix4f32,
+}
+
+Uniform_Vector3 :: struct {
+    name: string,
+    value: ^[3]f32,
+}
+
 Post_Processing_Node :: struct {
-    input: []^Texture,
+    uniforms: []Uniform,
     output: ^Render_Target,
 
     program: ^Shader_Program,