1 files changed, 82 insertions, 0 deletions
diff --git a/src/new_render/pbr.c b/src/new_render/pbr.c
new file mode 100644
index 0000000..b1ca005
--- /dev/null
+++ b/src/new_render/pbr.c
@@ -0,0 +1,82 @@
+#include "pbr.h"
+#include "file.h"
+#include "log.h"
+#include "ral_common.h"
+#include "ral_impl.h"
+#include "ral_types.h"
+#include "shader_layouts.h"
+
+void PBR_Init(PBR_Storage* storage) {
+  INFO("PBR shaders init");
+  storage->pbr_pass = PBR_RPassCreate();
+  storage->pbr_pipeline = PBR_PipelineCreate(storage->pbr_pass);
+}
+
+GPU_Renderpass* PBR_RPassCreate() {
+  GPU_RenderpassDesc desc = { .default_framebuffer = true };
+  return GPU_Renderpass_Create(desc);
+}
+
+GPU_Pipeline* PBR_PipelineCreate(GPU_Renderpass* rpass) {
+  arena scratch = arena_create(malloc(1024 * 1024), 1024 * 1024);
+
+  Str8 vert_path = str8("assets/shaders/pbr_textured.vert");
+  Str8 frag_path = str8("assets/shaders/pbr_textured.frag");
+  str8_opt vertex_shader = str8_from_file(&scratch, vert_path);
+  str8_opt fragment_shader = str8_from_file(&scratch, frag_path);
+  if (!vertex_shader.has_value || !fragment_shader.has_value) {
+    ERROR_EXIT("Failed to load shaders from disk")
+  }
+
+  ShaderData camera_data = { .get_layout = &Binding_Camera_GetLayout };
+  ShaderData model_data = { .get_layout = &Binding_Model_GetLayout };
+  ShaderData material_data = { .get_layout = &PBRMaterial_GetLayout };
+
+  GraphicsPipelineDesc desc = {
+    .debug_name = "PBR Pipeline",
+    .vertex_desc = static_3d_vertex_description(),
+    .data_layouts = {camera_data,model_data,material_data},
+    .data_layouts_count = 3,
+    .vs = { .debug_name = "PBR (textured) Vertex Shader",
+            .filepath = vert_path,
+            .code = vertex_shader.contents },
+    .fs = { .debug_name = "PBR (textured) Fragment Shader",
+            .filepath = frag_path,
+            .code = fragment_shader.contents,
+            },
+    .depth_test = true,
+    .wireframe = false,
+  };
+  return GPU_GraphicsPipeline_Create(desc, rpass);
+}
+
+ShaderDataLayout PBRMaterial_GetLayout(void* data) {
+  PBRMaterialUniforms* d = (PBRMaterialUniforms*)data;
+  bool has_data = data != NULL;
+
+  ShaderBinding b1 = {
+    .label = "albedoMap",
+    .kind = BINDING_TEXTURE,
+  };
+  ShaderBinding b2 = {
+    .label = "metallicRoughnessMap",
+    .kind = BINDING_TEXTURE,
+  };
+  ShaderBinding b3 = {
+    .label = "aoMap",
+    .kind = BINDING_TEXTURE,
+  };
+  ShaderBinding b4 = {
+    .label = "normalMap",
+    .kind = BINDING_TEXTURE,
+  };
+
+  if (has_data) {
+    b1.data.texture.handle = d->mat.pbr_albedo_map;
+    b2.data.texture.handle = d->mat.pbr_metallic_map;
+    b3.data.texture.handle = d->mat.pbr_ao_map;
+    b4.data.texture.handle = d->mat.pbr_normal_map;
+  }
+
+  return (ShaderDataLayout){ .bindings = { b1, b2, b3, b4 }, .binding_count = 4 };
+}
+\ No newline at end of file