diff --git a/src/game/rendering_graph_node.c b/src/game/rendering_graph_node.c
index 9c05cf0b8..20c9abc72 100644
--- a/src/game/rendering_graph_node.c
+++ b/src/game/rendering_graph_node.c
@@ -561,7 +561,9 @@ static void geo_process_camera(struct GraphNodeCamera *node) {
     if (!increment_mat_stack()) { return; }
 
     // save the camera matrix
-    mtxf_copy(gCamera->mtx, gMatStack[gMatStackIndex]);
+    if (gCamera) {
+        mtxf_copy(gCamera->mtx, gMatStack[gMatStackIndex]);
+    }
 
     if (node->fnNode.node.children != 0) {
         gCurGraphNodeCamera = node;
diff --git a/src/pc/gfx/gfx_opengl.c b/src/pc/gfx/gfx_opengl.c
index b8dab59e5..b294f9e1c 100644
--- a/src/pc/gfx/gfx_opengl.c
+++ b/src/pc/gfx/gfx_opengl.c
@@ -266,7 +266,7 @@ static struct ShaderProgram *gfx_opengl_create_and_load_new_shader(struct ColorC
     for (int i = 0; i < 16 / 4; i++) {
         u8* c = &cc->shader_commands[i * 4];
         do_single[i]   = (c[2] == 0);
-        do_multiply[i] = (c[1] == c[3]);
+        do_multiply[i] = (c[1] == 0 && c[3] == 0);
         do_mix[i]      = (c[1] == c[3]);
     }
 
diff --git a/src/pc/gfx/gfx_pc.c b/src/pc/gfx/gfx_pc.c
index 8caa8cf2b..7ca76f4c4 100644
--- a/src/pc/gfx/gfx_pc.c
+++ b/src/pc/gfx/gfx_pc.c
@@ -335,6 +335,7 @@ static struct ColorCombiner *gfx_lookup_or_create_color_combiner(struct CombineM
     struct ColorCombiner *comb = &color_combiner_pool[color_combiner_pool_size++];
     comb->cm = *cm;
     gfx_generate_cc(comb);
+
     return prev_combiner = comb;
 }