317 lines
7.1 KiB
C
317 lines
7.1 KiB
C
#include "openglrender.h"
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#include "camera.h"
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#include "config.h"
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#include "datastream.h"
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#include "debugdraw.h"
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#include "font.h"
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#include "gameobject.h"
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#include "log.h"
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#include "nuke.h"
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#include "shader.h"
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#include "sprite.h"
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#include "window.h"
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#include "model.h"
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#include "stb_ds.h"
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#include "HandmadeMath.h"
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int renderMode = LIT;
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struct shader *spriteShader = NULL;
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struct shader *wireframeShader = NULL;
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struct shader *animSpriteShader = NULL;
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static struct shader *textShader;
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mfloat_t editorClearColor[4] = {0.2f, 0.4f, 0.3f, 1.f};
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float shadowLookahead = 8.5f;
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mfloat_t gridSmallColor[3] = {0.35f, 1.f, 0.9f};
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mfloat_t gridBigColor[3] = {0.92f, 0.92f, 0.68f};
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float gridScale = 500.f;
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float smallGridUnit = 1.f;
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float bigGridUnit = 10.f;
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float gridSmallThickness = 2.f;
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float gridBigThickness = 7.f;
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float gridOpacity = 0.3f;
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mfloat_t proj[16];
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// Debug render modes
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bool renderGizmos = false;
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bool showGrid = true;
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bool debugDrawPhysics = false;
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bool renderNav = false;
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// Lighting effect flags
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bool renderAO = true;
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bool renderDynamicShadows = true;
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bool renderRefraction = true;
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bool renderReflection = true;
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///// for editing
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struct gameobject *selectedobject = NULL;
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char objectName[200] = {'\0'}; // object name buffer
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struct sprite *tsprite = NULL;
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const char *donquixote;
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static struct model *duck;
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sg_image ddimg;
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void debug_draw_phys(int draw) {
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debugDrawPhysics = draw;
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}
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void opengl_rendermode(enum RenderMode r) {
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renderMode = r;
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}
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sg_pipeline mainpip;
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sg_pass_action pass_action = {0};
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static struct {
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sg_pass_action pass_action;
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sg_pass pass;
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sg_pipeline pipe;
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sg_shader shader;
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} sg_shadow;
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static struct {
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sg_shader shader;
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sg_pipeline pipe;
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sg_bindings bind;
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sg_pass pass;
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sg_image img;
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sg_image depth_img;
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} crt_post;
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void openglInit() {
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if (!mainwin) {
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YughError("No window to init OpenGL on.", 1);
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exit(1);
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}
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font_init(NULL);
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debugdraw_init();
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sprite_initialize();
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nuke_init(mainwin);
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model_init();
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// duck = MakeModel("sponza.glb");
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pass_action = (sg_pass_action){
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.colors[0] = {.action = SG_ACTION_CLEAR, .value = {editorClearColor[1], editorClearColor[2], editorClearColor[3], 1.f}},
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};
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crt_post.shader = sg_make_shader(&(sg_shader_desc){
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.vs.source = slurp_text("shaders/postvert.glsl"),
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.fs.source = slurp_text("shaders/crtfrag.glsl"),
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.fs.images[0] = {
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.name = "diffuse_texture",
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.image_type = SG_IMAGETYPE_2D,
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.sampler_type = SG_SAMPLERTYPE_FLOAT
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}
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});
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crt_post.pipe = sg_make_pipeline(&(sg_pipeline_desc){
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.shader = crt_post.shader,
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.layout = {
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.attrs = {
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[0].format = SG_VERTEXFORMAT_FLOAT2,
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[1].format = SG_VERTEXFORMAT_FLOAT2
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}
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}
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});
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crt_post.img = sg_make_image(&(sg_image_desc){
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.render_target = true,
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.width = 1200,
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.height = 720,
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});
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crt_post.depth_img = sg_make_image(&(sg_image_desc){
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.render_target = true,
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.width = 1200,
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.height = 720,
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.pixel_format = SG_PIXELFORMAT_DEPTH_STENCIL
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});
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crt_post.pass = sg_make_pass(&(sg_pass_desc){
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.color_attachments[0].image = crt_post.img,
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.depth_stencil_attachment.image = crt_post.depth_img,
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});
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float crt_quad[] = {
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-1, 1, 0, 1,
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-1, -1, 0, 0,
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1, -1, 1, 0,
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-1, 1, 0, 1,
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1, -1, 1, 0,
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1, 1, 1, 1
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};
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crt_post.bind.vertex_buffers[0] = sg_make_buffer(&(sg_buffer_desc){
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.size = sizeof(crt_quad),
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.data = crt_quad
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});
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crt_post.bind.fs_images[0] = crt_post.img;
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/*
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sg_image_desc shadow_desc = {
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.render_target = true,
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.width = 1024,
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.height = 1024,
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.pixel_format = SG_PIXELFORMAT_R32F,
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};
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sg_image depth_img = sg_make_image(&shadow_desc);
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shadow_desc.pixel_format = SG_PIXELFORMAT_DEPTH;
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ddimg = sg_make_image(&shadow_desc);
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duck = MakeModel("sponza.glb");
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sg_shadow.pass = sg_make_pass(&(sg_pass_desc){
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.color_attachments[0].image = depth_img,
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.depth_stencil_attachment.image = ddimg,
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});
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sg_shadow.pass_action = (sg_pass_action) {
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.colors[0] = { .action=SG_ACTION_CLEAR, .value = {1,1,1,1} } };
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sg_shadow.shader = sg_make_shader(&(sg_shader_desc){
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.vs.source = slurp_text("shaders/shadowvert.glsl"),
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.fs.source = slurp_text("shaders/shadowfrag.glsl"),
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.vs.uniform_blocks[0] = {
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.size = sizeof(float) * 16 * 2,
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.uniforms = {
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[0] = {.name = "lightSpaceMatrix", .type = SG_UNIFORMTYPE_MAT4},
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[1] = {.name = "model", .type = SG_UNIFORMTYPE_MAT4},
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}
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}
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});
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sg_shadow.pipe = sg_make_pipeline(&(sg_pipeline_desc){
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.shader = sg_shadow.shader,
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.layout = {
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.attrs = {
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[0].format = SG_VERTEXFORMAT_FLOAT3,
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}
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},
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.depth = {
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.compare = SG_COMPAREFUNC_LESS_EQUAL,
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.write_enabled = true,
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.pixel_format = SG_PIXELFORMAT_DEPTH
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},
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.colors[0].pixel_format = SG_PIXELFORMAT_R32F,
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.index_type = SG_INDEXTYPE_UINT16,
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.cull_mode = SG_CULLMODE_BACK,
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});
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*/
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}
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static cpBody *camera = NULL;
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void set_cam_body(cpBody *body) {
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camera = body;
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}
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cpVect cam_pos() {
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return camera ? cpBodyGetPosition(camera) : cpvzero;
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}
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static float zoom = 1.f;
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float cam_zoom() { return zoom; }
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void add_zoom(float val) { zoom = val; }
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mfloat_t projection[16] = {0.f};
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HMM_Vec3 dirl_pos = {4, 100, 20};
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void openglRender(struct window *window) {
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/*
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HMM_Mat4 model = HMM_M4D(1.f);
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float scale = 0.08;
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model = HMM_MulM4(model, HMM_Scale((HMM_Vec3){scale,scale,scale}));
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// Shadow pass
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sg_begin_pass(sg_shadow.pass, &sg_shadow.pass_action);
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sg_apply_pipeline(sg_shadow.pipe);
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HMM_Mat4 light_proj = HMM_Orthographic_RH_ZO(-100.f, 100.f, -100.f, 100.f, 1.f, 100.f);
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HMM_Mat4 light_view = HMM_LookAt_RH(dirl_pos, (HMM_Vec3){0,0,0}, (HMM_Vec3){0,1,0});
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HMM_Mat4 lsm = HMM_MulM4(light_proj, light_view);
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HMM_Mat4 subo[2];
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subo[0] = lsm;
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subo[1] = model;
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sg_apply_uniforms(SG_SHADERSTAGE_VS, 0, SG_RANGE_REF(subo));
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for (int i = 0; i < arrlen(duck->meshes); i++) {
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sg_bindings sbind = {0};
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sbind.vertex_buffers[0] = duck->meshes[i].bind.vertex_buffers[0];
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sbind.index_buffer = duck->meshes[i].bind.index_buffer;
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sg_apply_bindings(&sbind);
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sg_draw(0,duck->meshes[i].face_count,1);
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}
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sg_end_pass();
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draw_model(duck,model, lsm);
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*/
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// sg_begin_default_pass(&pass_action, window->width, window->height);
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sg_begin_pass(crt_post.pass, &pass_action);
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//////////// 2D projection
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cpVect pos = cam_pos();
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mat4_ortho(projection, pos.x - zoom * window->width / 2,
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pos.x + zoom * window->width / 2,
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pos.y - zoom * window->height / 2,
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pos.y + zoom * window->height / 2, -1.f, 1.f);
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mfloat_t ui_projection[16] = {0.f};
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mat4_ortho(ui_projection, 0, window->width, 0, window->height, -1.f, 1.f);
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sprite_draw_all();
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sprite_flush();
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//// DEBUG
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if (debugDrawPhysics)
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gameobject_draw_debugs();
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call_debugs();
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debug_flush();
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////// TEXT && GUI
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call_gui();
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text_flush();
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nuke_start();
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call_nk_gui();
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nuke_end();
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sg_end_pass();
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sg_begin_default_pass(&pass_action, window->width, window->height);
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sg_apply_pipeline(crt_post.pipe);
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sg_apply_bindings(&crt_post.bind);
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sg_draw(0,6,1);
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sg_end_pass();
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sg_commit();
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}
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