backface culling

1 files changed, 10 insertions, 2 deletions

diff --git a/video.cpp b/video.cpp
index d5efb34..3148500 100644
--- a/video.cpp
+++ b/video.cpp
@@ -250,6 +250,15 @@ struct Vram_Allocator {
 	void free(Allocation& alloc);
 };
 
+static VkCullModeFlags get_vk_cull_mode(Cull_Mode mode) {
+	switch (mode) {
+		case Cull_Mode::none:  return VK_CULL_MODE_NONE;
+		case Cull_Mode::back:  return VK_CULL_MODE_BACK_BIT;
+		case Cull_Mode::front: return VK_CULL_MODE_FRONT_BIT;
+	}
+	assert(0);
+	return VK_CULL_MODE_NONE;
+}
 
 static VkFormat get_vk_format(Texture_Format fmt) {
 	switch (fmt) {
@@ -2631,14 +2640,13 @@ void Pipeline_Vk::init_rasterisation(
 			sizeof ri
 		);
 	(void)dev;
-	(void)desc;
 	zero(&ri, sizeof ri);
 	ri.sType = VK_STRUCTURE_TYPE_PIPELINE_RASTERIZATION_STATE_CREATE_INFO;
 	ri.depthClampEnable = VK_FALSE;
 	ri.rasterizerDiscardEnable = VK_FALSE;
 	ri.polygonMode = VK_POLYGON_MODE_FILL;
 	ri.lineWidth = 1.0f;
-	ri.cullMode = VK_CULL_MODE_NONE;
+	ri.cullMode = get_vk_cull_mode(desc.cull_mode);
 	ri.frontFace = VK_FRONT_FACE_COUNTER_CLOCKWISE;
 	ri.depthBiasEnable = VK_FALSE;
 	info.pRasterizationState = &ri;