diff options
Diffstat (limited to 'archive/src/render/shadows.c')
| -rw-r--r-- | archive/src/render/shadows.c | 211 |
1 files changed, 0 insertions, 211 deletions
diff --git a/archive/src/render/shadows.c b/archive/src/render/shadows.c deleted file mode 100644 index 029eefb..0000000 --- a/archive/src/render/shadows.c +++ /dev/null @@ -1,211 +0,0 @@ -#include "shadows.h" -#include <string.h> -#include "file.h" -#include "glad/glad.h" -#include "log.h" -#include "maths.h" -#include "maths_types.h" -#include "primitives.h" -#include "ral_common.h" -#include "ral_impl.h" -#include "ral_types.h" -#include "render.h" -#include "render_types.h" -#include "str.h" - -ShaderDataLayout ShadowUniforms_GetLayout(void* data) { - ShadowUniforms* d = (ShadowUniforms*)data; - bool has_data = data != NULL; - - ShaderBinding b1 = { - .label = "ShadowUniforms", - .kind = BINDING_BYTES, - .vis = VISIBILITY_VERTEX, - .data = { .bytes = { .size = sizeof(ShadowUniforms) } } - // TODO: split this into two bindings so we can update model matrix independently - }; - - if (has_data) { - b1.data.bytes.data = data; - } - - return (ShaderDataLayout){ .binding_count = 1, .bindings = { b1 } }; -} - -ShaderDataLayout ShadowDebugQuad_GetLayout(void* data) { - TextureHandle* handle = data; - bool has_data = data != NULL; - - ShaderBinding b1 = { - .label = "depthMap", - .kind = BINDING_TEXTURE, - .vis = VISIBILITY_FRAGMENT, - }; - - if (has_data) { - b1.data.texture.handle = *handle; - } - - return (ShaderDataLayout){ .binding_count = 1, .bindings = { b1 } }; -} - -void Shadow_Init(Shadow_Storage* storage, u32 shadowmap_width, u32 shadowmap_height) { - memset(storage, 0, sizeof(Shadow_Storage)); - arena scratch = arena_create(malloc(1024 * 1024), 1024 * 1024); - - TextureDesc depthmap_desc = { .extents = u32x2(shadowmap_width, shadowmap_height), - .format = TEXTURE_FORMAT_DEPTH_DEFAULT, - .tex_type = TEXTURE_TYPE_2D }; - DEBUG("Creating depth map texture for shadows"); - TextureHandle depthmap = GPU_TextureCreate(depthmap_desc, false, NULL); - storage->depth_texture = depthmap; - - // -- shadowmap drawing pass - GPU_RenderpassDesc rpass_desc = { .default_framebuffer = false, - .has_color_target = false, - .has_depth_stencil = true, - .depth_stencil = depthmap }; - - storage->shadowmap_pass = GPU_Renderpass_Create(rpass_desc); - - WARN("About to laod shaders"); - WARN("Shader paths: %s %s", "assets/shaders/shadows.vert", "assets/shaders/shadows.frag"); - Str8 vert_path = str8("assets/shaders/shadows.vert"); - Str8 frag_path = str8("assets/shaders/shadows.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"); - } - - ShaderDataLayout uniforms = ShadowUniforms_GetLayout(NULL); - - GraphicsPipelineDesc pipeline_desc = { - .debug_name = "Shadows Pipeline", - .vertex_desc = static_3d_vertex_description(), - .data_layouts = { uniforms }, - .data_layouts_count = 1, - .vs = { .debug_name = "Shadows Vert shader", - .filepath = vert_path, - .code = vertex_shader.contents, - .is_spirv = false }, - .fs = { .debug_name = "Shadows Frag shader", - .filepath = frag_path, - .code = fragment_shader.contents, - .is_spirv = false }, - }; - storage->shadowmap_pipeline = GPU_GraphicsPipeline_Create(pipeline_desc, storage->shadowmap_pass); - - // -- debug quad pipeline - GPU_RenderpassDesc debug_pass_desc = { .default_framebuffer = true }; - storage->debugquad_pass = GPU_Renderpass_Create(debug_pass_desc); - - vert_path = str8("assets/shaders/debug_quad.vert"); - frag_path = str8("assets/shaders/debug_quad.frag"); - vertex_shader = str8_from_file(&scratch, vert_path); - 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"); - } - - ShaderDataLayout debugquad_uniforms = ShadowDebugQuad_GetLayout(NULL); - - GraphicsPipelineDesc debugquad_pipeline_desc = { - .debug_name = "Shadows debug quad Pipeline", - .vertex_desc = static_3d_vertex_description(), - .data_layouts = { debugquad_uniforms }, - .data_layouts_count = 1, - .vs = { .debug_name = "depth debug quad vert shader", - .filepath = vert_path, - .code = vertex_shader.contents, - .is_spirv = false }, - .fs = { .debug_name = "depth debug quad frag shader", - .filepath = frag_path, - .code = fragment_shader.contents, - .is_spirv = false }, - }; - storage->debugquad_pipeline = - GPU_GraphicsPipeline_Create(debugquad_pipeline_desc, storage->debugquad_pass); - - Geometry quad_geo = Geo_CreatePlane(f32x2(1, 1), 1, 1); - // HACK: Swap vertices to make it face us - Vertex top0 = quad_geo.vertices->data[0]; - quad_geo.vertices->data[0] = quad_geo.vertices->data[2]; - quad_geo.vertices->data[2] = top0; - Vertex top1 = quad_geo.vertices->data[1]; - quad_geo.vertices->data[1] = quad_geo.vertices->data[3]; - quad_geo.vertices->data[3] = top1; - storage->quad = Mesh_Create(&quad_geo, false); - - arena_free_storage(&scratch); -} - -void Shadow_Run(RenderEnt* entities, size_t entity_count) { - Shadow_Storage* shadow_storage = Render_GetShadowStorage(); - - // calculations - RenderScene* render_scene = Render_GetScene(); - f32 near_plane = 1.0, far_plane = 10.0; - // -- Not sure about how we want to handle lights - Vec3 light_position = { 1, 4, -1 }; - // -- - Mat4 light_projection = mat4_orthographic(-10.0, 10.0, -10.0, 10.0, near_plane, far_plane); - Mat4 light_view = mat4_look_at(light_position, VEC3_ZERO, VEC3_Y); - Mat4 light_space_matrix = mat4_mult(light_view, light_projection); - - Shadow_ShadowmapExecute(shadow_storage, light_space_matrix, entities, entity_count); -} - -void Shadow_DrawDebugQuad() { - Shadow_Storage* shadow_storage = Render_GetShadowStorage(); - - GPU_CmdEncoder* enc = GPU_GetDefaultEncoder(); - GPU_CmdEncoder_BeginRender(enc, shadow_storage->debugquad_pass); - - GPU_EncodeBindPipeline(enc, shadow_storage->debugquad_pipeline); - ShaderDataLayout quad_data = ShadowDebugQuad_GetLayout(&shadow_storage->depth_texture); - GPU_EncodeBindShaderData(enc, 0, quad_data); - GPU_EncodeSetVertexBuffer(enc, shadow_storage->quad.vertex_buffer); - GPU_EncodeSetIndexBuffer(enc, shadow_storage->quad.index_buffer); - GPU_EncodeDrawIndexedTris(enc, shadow_storage->quad.geometry.indices->len); - - GPU_CmdEncoder_EndRender(enc); -} - -void Shadow_ShadowmapExecute(Shadow_Storage* storage, Mat4 light_space_transform, - RenderEnt* entities, size_t entity_count) { - GPU_CmdEncoder shadow_encoder = GPU_CmdEncoder_Create(); - - GPU_CmdEncoder_BeginRender(&shadow_encoder, storage->shadowmap_pass); - // DEBUG("Begin shadowmap renderpass"); - - // FIXME: shouldnt be gl specific - glClear(GL_DEPTH_BUFFER_BIT); - - GPU_EncodeBindPipeline(&shadow_encoder, storage->shadowmap_pipeline); - - ShadowUniforms uniforms = { - .light_space = light_space_transform, - .model = mat4_ident() // this will be overwritten for each Model - }; - ShaderDataLayout shader_data = ShadowUniforms_GetLayout(&uniforms); - - for (size_t ent_i = 0; ent_i < entity_count; ent_i++) { - RenderEnt renderable = entities[ent_i]; - if (renderable.flags && REND_ENT_CASTS_SHADOWS) { - // Model* model = MODEL_GET(renderable.model); - - uniforms.model = renderable.affine; // update the model transform - - Mesh* mesh = Mesh_pool_get(Render_GetMeshPool(), renderable.mesh); - GPU_EncodeBindShaderData(&shadow_encoder, 0, shader_data); - GPU_EncodeSetVertexBuffer(&shadow_encoder, mesh->vertex_buffer); - GPU_EncodeSetIndexBuffer(&shadow_encoder, mesh->index_buffer); - GPU_EncodeDrawIndexedTris(&shadow_encoder, mesh->geometry.indices->len); - } - } - - GPU_CmdEncoder_EndRender(&shadow_encoder); // end renderpass -} - -TextureHandle Shadow_GetShadowMapTexture(Shadow_Storage* storage) { return storage->depth_texture; } |