4 files changed, 25 insertions, 3 deletions

diff --git a/model.cpp b/model.cpp
index 3b0e90f..2b6f1f4 100644
--- a/model.cpp
+++ b/model.cpp
@@ -209,6 +209,7 @@ void Model::render(
 			pb.depth(true, true, Depth_Mode::less);
 		else
 			pb.depth(true, false, Depth_Mode::equal);
+		pb.cull(Cull_Mode::back);
 		pb.shader(mesh.shader);
 		pb.cbuffer(
 			mesh.mvp_binding,
diff --git a/pipeline.cpp b/pipeline.cpp
index cb052b8..2dc8ce9 100644
--- a/pipeline.cpp
+++ b/pipeline.cpp
@@ -180,6 +180,10 @@ void Pipeline_Builder::blend(
 	);
 }
 
+void Pipeline_Builder::cull(Cull_Mode mode) {
+	pip->cull_mode = mode;
+}
+
 void Pipeline_Builder::blend(
 	Blend_Mode mode_col,
 	Blend_Factor src_col,
@@ -265,6 +269,7 @@ Pipeline& Pipeline_Builder::build() {
 	h(pip->pipeline_hash, pip->blend_dst);
 	h(pip->pipeline_hash, pip->blend_src_alpha);
 	h(pip->pipeline_hash, pip->blend_dst_alpha);
+	h(pip->pipeline_hash, pip->cull_mode);
 	{
 		int i, e = pip->descriptor_count;
 		pip->descriptor_resource_hash = fnv1a64(0, 0);
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;
diff --git a/video.hpp b/video.hpp
index 60127f3..13dbf16 100644
--- a/video.hpp
+++ b/video.hpp
@@ -104,6 +104,11 @@ enum class Blend_Mode {
 	max
 };
 
+enum class Cull_Mode {
+	none,
+	back,
+	front
+};
 
 struct Pipeline {
 	uint64_t pipeline_hash;
@@ -117,6 +122,7 @@ struct Pipeline {
 	Blend_Mode blend_mode;
 	Blend_Factor blend_src_alpha, blend_dst_alpha;
 	Blend_Mode blend_mode_alpha;
+	Cull_Mode cull_mode;
 	Vertex_Format_Id vertex_format;
 	Shader_Id shader;
 	Descriptor descriptors[pipeline_max_descriptors];
@@ -143,7 +149,8 @@ struct Pipeline {
 			blend_src_alpha == other.blend_src_alpha &&
 			blend_dst_alpha == other.blend_dst_alpha &&
 			blend_mode == other.blend_mode &&
-			blend_mode_alpha == other.blend_mode_alpha;
+			blend_mode_alpha == other.blend_mode_alpha &&
+			cull_mode == other.cull_mode;
 	}
 
 	bool desc_layout_eq(const Pipeline& other) const {
@@ -300,6 +307,7 @@ struct Pipeline_Builder {
 		Blend_Factor src_alpha,
 		Blend_Factor dst_alpha
 	);
+	void cull(Cull_Mode mode);
 	void shader(Shader_Id s);
 	void vertex_format(Vertex_Format_Id vf);
 	void texture(int binding, Texture_Id t, Sampler_Id s);