Move some MVP calculation out of loop

1 files changed, 4 insertions, 5 deletions

diff --git a/src/rendering/src/rendering.c b/src/rendering/src/rendering.c
index 4296a7a..8932cfc 100644
--- a/src/rendering/src/rendering.c
+++ b/src/rendering/src/rendering.c
@@ -449,9 +449,11 @@ void render_present(Window* w) {
 
   mat4 view; // view
   vec3 angle; // viewing angle / direction of the camera
+  mat4 camera_matrix;
 
   glm_vec3_sub(c.pos, c.dir, angle);
   glm_lookat(c.pos, angle, GLM_YUP, view);
+  glm_mat4_mul(c.per, view, camera_matrix);
 
   for (i32 drawcall_idx = 0; drawcall_idx < drawcall_len; drawcall_idx++) {
     RenderDrawCall dc = drawcalls[drawcall_idx];
@@ -485,11 +487,8 @@ void render_present(Window* w) {
         model[3][1] = pos[1];
         model[3][2] = pos[2];
 
-        {  // modelviewprojection = p * view * model
-          mat4 t;
-          glm_mat4_mul(view, model, t);
-          glm_mat4_mul(c.per, t, modelviewprojection);
-        }
+        // modelviewprojection = p * view * model
+        glm_mat4_mul(model, camera_matrix, modelviewprojection);
 
         // TODO: Do this only once during initialization
         gl->UniformMatrix4fv(o->mvp, 1, GL_FALSE, &modelviewprojection[0][0]);