Update teapot model, add phong shading, & more

1 files changed, 6 insertions, 0 deletions

diff --git a/src/obj_model.c b/src/obj_model.c
index 6b11583..39c25b6 100644
--- a/src/obj_model.c
+++ b/src/obj_model.c
@@ -27,6 +27,8 @@
 typedef struct ta_obj_uniforms {
     float mvp[16];
     float model[16];
+    float camera_position[3];
+    float padding;
 } ta_obj_uniforms;
 
 static SDL_GPUShader *ta_obj_shader(SDL_GPUDevice *device, const void *code, size_t size, SDL_GPUShaderStage stage) {
@@ -167,6 +169,10 @@ void ta_obj_model_render(const ta_obj_model *model, SDL_GPUCommandBuffer *comman
     projection[14] = near_plane * far_plane / (near_plane - far_plane);
     ta_obj_multiply(view_model, view, uniforms.model);
     ta_obj_multiply(uniforms.mvp, projection, view_model);
+    uniforms.camera_position[0] = ta_camera_current.x;
+    uniforms.camera_position[1] = ta_camera_current.y;
+    uniforms.camera_position[2] = ta_camera_current.z;
+    uniforms.padding = 0.0f;
     SDL_PushGPUVertexUniformData(command_buffer, 0, &uniforms, sizeof(uniforms));
     SDL_BindGPUGraphicsPipeline(render_pass, model->pipeline);
     SDL_GPUBufferBinding binding = {.buffer = model->vertex_buffer};