Add PCSS shadowsHEADmaster

1 files changed, 17 insertions, 10 deletions

diff --git a/src/model.c b/src/model.c
index 2c78850..396e70a 100644
--- a/src/model.c
+++ b/src/model.c
@@ -145,7 +145,7 @@ typedef struct ta_model_light_uniforms {
     float shadow_minimum_bias;
     float shadow_maximum_bias;
     float shadow_strength;
-    float padding;
+    float shadow_penumbra_scale;
 } ta_model_light_uniforms;
 
 typedef struct ta_model_shadow_uniforms {
@@ -182,7 +182,7 @@ bool ta_model_init(ta_model *model, SDL_GPUDevice *device, const float positions
     }
     model->vertex_count = (Uint32)model->mesh.vertex_count;
     SDL_GPUShader *vertex_shader = ta_model_shader(device, file_model_vert_slang_spv_start, file_model_vert_slang_spv_size, SDL_GPU_SHADERSTAGE_VERTEX, 0, 1);
-    SDL_GPUShader *fragment_shader = ta_model_shader(device, file_model_frag_slang_spv_start, file_model_frag_slang_spv_size, SDL_GPU_SHADERSTAGE_FRAGMENT, 1, 1);
+    SDL_GPUShader *fragment_shader = ta_model_shader(device, file_model_frag_slang_spv_start, file_model_frag_slang_spv_size, SDL_GPU_SHADERSTAGE_FRAGMENT, 2, 1);
     SDL_GPUVertexBufferDescription vertex_buffer = {.slot = 0, .pitch = sizeof(ta_model_vertex), .input_rate = SDL_GPU_VERTEXINPUTRATE_VERTEX};
     SDL_GPUVertexAttribute attributes[2] = {
         {
@@ -374,17 +374,24 @@ void ta_model_render(const ta_model *model, SDL_GPUCommandBuffer *command_buffer
                 ta_shadow_light_direction[1],
                 ta_shadow_light_direction[2]
             },
-            .shadow_texel_size   = 1.0f / (float)TA_SHADOW_MAP_SIZE,
-            .shadow_minimum_bias = ta_shadow_minimum_bias,
-            .shadow_maximum_bias = ta_shadow_maximum_bias,
-            .shadow_strength     = ta_shadow_strength,
+            .shadow_texel_size     = 1.0f / (float)TA_SHADOW_MAP_SIZE,
+            .shadow_minimum_bias   = ta_shadow_minimum_bias,
+            .shadow_maximum_bias   = ta_shadow_maximum_bias,
+            .shadow_strength       = ta_shadow_strength,
+            .shadow_penumbra_scale = ta_shadow_penumbra_scale,
         };
-        SDL_GPUTextureSamplerBinding shadow_binding = {
-            .texture = ta_shadow_texture,
-            .sampler = ta_shadow_sampler
+        SDL_GPUTextureSamplerBinding shadow_bindings[2] = {
+            {
+                .texture = ta_shadow_texture,
+                .sampler = ta_shadow_sampler
+            },
+            {
+                .texture = ta_shadow_texture,
+                .sampler = ta_shadow_depth_sampler
+            },
         };
         SDL_PushGPUFragmentUniformData(command_buffer, 0, &light, sizeof(light));
-        SDL_BindGPUFragmentSamplers(render_pass, 0, &shadow_binding, 1);
+        SDL_BindGPUFragmentSamplers(render_pass, 0, shadow_bindings, 2);
     }
 
     SDL_GPUBufferBinding binding = {