Combine render functions into single gpu_render()

gpu.h

@@ -47,7 +47,6 @@ typedef struct {
 	VkDeviceMemory staging_mem;
 	void *staging_ptr;
 	VkCommandPool transient_cmd_pool;
-	uint32_t active_img_index;
 } gpu_ctx_t;
 
 typedef struct {
@@ -73,10 +72,9 @@ void gpu_model_load(
     const gpu_ctx_t *ctx, const model_t *model, gpu_model_t *out);
 void gpu_model_cleanup(const gpu_ctx_t *ctx, const gpu_model_t *model);
 
-void gpu_render_begin(gpu_ctx_t *ctx, vp_t vp);
-void gpu_render_model(
-    const gpu_ctx_t *ctx, const gpu_model_t *model,
-    const mat4_t *bone_matrices, mat4_t transform);
-void gpu_render_submit(gpu_ctx_t *ctx);
+void gpu_render(
+    const gpu_ctx_t *ctx, vp_t vp, size_t model_count,
+    const gpu_model_t *models, const mat4_t **bone_matrices,
+    const mat4_t *model_transforms);
 
 #endif