mirror of https://github.com/mode777/rayjs.git
still not working
This commit is contained in:
Alexander Klingenbeck
parent
9b69016ce8
commit
b5c275a9d7
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@ -11,3 +11,4 @@ controls_test.exe
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debug_interpolation.tga
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debug_interpolation.tga
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result.tga
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result.tga
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lightmapper_example
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lightmapper_example
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lightmapper_example.exe
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@ -5,6 +5,7 @@
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"embedded_shader.h": "c",
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"embedded_shader.h": "c",
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"common.h": "c",
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"common.h": "c",
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"raylib.h": "c",
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"raylib.h": "c",
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"glad.h": "c"
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"glad.h": "c",
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"lightmapper.h": "c"
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}
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}
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}
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}
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@ -0,0 +1,757 @@
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#include <stdlib.h>
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#include "raylib.h"
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#include "rlgl.h"
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#define GLAD_MALLOC(sz) malloc(sz)
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#define GLAD_FREE(sz) free(sz)
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//#define GLAD_GL_IMPLEMENTATION
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#include "../thirdparty/raylib/src/external/glad.h"
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#define LIGHTMAPPER_IMPLEMENTATION
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#define LM_DEBUG_INTERPOLATION
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#include "lightmapper.h"
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// load shader
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const char *vp =
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"#version 150 core\n"
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"in vec3 a_position;\n"
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"in vec2 a_texcoord;\n"
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"uniform mat4 u_view;\n"
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"uniform mat4 u_projection;\n"
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"out vec2 v_texcoord;\n"
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"void main()\n"
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"{\n"
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"gl_Position = u_projection * (u_view * vec4(a_position, 1.0));\n"
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"v_texcoord = a_texcoord;\n"
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"}\n";
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const char *fp =
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"#version 150 core\n"
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"in vec2 v_texcoord;\n"
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"uniform sampler2D u_lightmap;\n"
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"out vec4 o_color;\n"
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"void main()\n"
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"{\n"
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"o_color = vec4(texture(u_lightmap, v_texcoord).rgb, gl_FrontFacing ? 1.0 : 0.0);\n"
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"}\n";
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const char *attribs[] =
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{
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"a_position",
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"a_texcoord"
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};
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int main(void)
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{
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// Initialization
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//--------------------------------------------------------------------------------------
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const int screenWidth = 800;
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const int screenHeight = 450;
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InitWindow(screenWidth, screenHeight, "raylib [models] lightmapping");
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Model model = LoadModel("thirdparty/lightmapper/example/gazebo.obj");
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Shader shader = LoadShaderFromMemory(vp, fp);
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Texture texture = LoadTextureFromImage(GenImageColor(1,1,BLACK));
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int u_view = GetShaderLocation(shader, "u_view");
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int u_projection = GetShaderLocation(shader, "u_projection");
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int u_lightmap = GetShaderLocation(shader, "u_lightmap");
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Vector3 position = { 0.0f, 0.0f, 0.0f };
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//--------------------------------------------------------------------------------------
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lm_context *ctx = lmCreate(
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64, // hemisphere resolution (power of two, max=512)
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0.001f, 100.0f, // zNear, zFar of hemisphere cameras
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1.0f, 1.0f, 1.0f, // background color (white for ambient occlusion)
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2, 0.01f, // lightmap interpolation threshold (small differences are interpolated rather than sampled)
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// check debug_interpolation.tga for an overview of sampled (red) vs interpolated (green) pixels.
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0.0f); // modifier for camera-to-surface distance for hemisphere rendering.
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// tweak this to trade-off between interpolated normals quality and other artifacts (see declaration).
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if (!ctx) TraceLog(LOG_ERROR, "Lightmapper not initialized");
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int w = 512;
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int h = 512;
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float *data = calloc(w*h*4,sizeof(float));
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lmSetTargetLightmap(ctx, data, w, h, 4);
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Mesh m = model.meshes[0];
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lmSetGeometry(ctx, NULL, // no transformation in this example
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LM_FLOAT, m.vertices, 0,
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LM_NONE , NULL, 0,
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LM_FLOAT, m.texcoords, 0,
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m.vertexCount, LM_NONE, 0);
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printf("%p\n", m.texcoords);
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int vp[4];
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Matrix view, projection;
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double lastUpdateTime = 0.0;
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Mesh mesh = model.meshes[0];
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//SetTargetFPS(10000);
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while (lmBegin(ctx, vp, (float*)&view, (float*)&projection))
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{
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printf("%d, %d, %d, %d\n", vp[0], vp[1], vp[2], vp[3]);
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glViewport(vp[0], vp[1], vp[2], vp[3]);
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glEnable(GL_DEPTH_TEST);
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glUseProgram(shader.id);
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glUniform1i(u_lightmap, 0);
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glUniformMatrix4fv(u_projection, 1, GL_FALSE, (float *)&projection);
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glUniformMatrix4fv(u_view, 1, GL_FALSE, (float *)&view);
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glBindTexture(GL_TEXTURE_2D, texture.id);
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glBindVertexArray(mesh.vaoId);
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glDrawArrays(GL_TRIANGLES, 0, mesh.vertexCount);
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double time = GetTime();
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if (time - lastUpdateTime > 1.0)
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{
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lastUpdateTime = time;
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printf("\r%6.2f%%", lmProgress(ctx) * 100.0f);
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fflush(stdout);
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}
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lmEnd(ctx);
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if(WindowShouldClose()) break;
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}
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// postprocess texture
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float *temp = calloc(w * h * 4, sizeof(float));
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for (int i = 0; i < 16; i++)
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{
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lmImageDilate(data, temp, w, h, 4);
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lmImageDilate(temp, data, w, h, 4);
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}
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lmImageSmooth(data, temp, w, h, 4);
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lmImageDilate(temp, data, w, h, 4);
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lmImagePower(data, w, h, 4, 1.0f / 2.2f, 0x7); // gamma correct color channels
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free(temp);
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// save result to a file
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if (lmImageSaveTGAf("result.tga", data, w, h, 4, 1.0f))
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printf("Saved result.tga\n");
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rlViewport(0,0, screenWidth, screenHeight);
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// Define the camera to look into our 3d world
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Camera camera = { 0 };
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camera.position = (Vector3){ 1.0f, 0.5f, 1.0f }; // Camera position
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camera.target = (Vector3){ 0.0f, 0.0f, 0.0f }; // Camera looking at point
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camera.up = (Vector3){ 0.0f, 1.0f, 0.0f }; // Camera up vector (rotation towards target)
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camera.fovy = 45.0f; // Camera field-of-view Y
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camera.projection = CAMERA_PERSPECTIVE; // Camera mode type
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SetTargetFPS(60); // Set our game to run at 60 frames-per-second
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// Main game loop
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while (!WindowShouldClose()) // Detect window close button or ESC key
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{
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// Update
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//----------------------------------------------------------------------------------
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//UpdateCamera(&camera, CAMERA_FIRST_PERSON);
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//----------------------------------------------------------------------------------
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// Draw
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//----------------------------------------------------------------------------------
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BeginDrawing();
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ClearBackground(RAYWHITE);
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BeginMode3D(camera);
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DrawModel(model, position, 1.0f, WHITE);
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EndMode3D();
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EndDrawing();
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//----------------------------------------------------------------------------------
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}
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// De-Initialization
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//--------------------------------------------------------------------------------------
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//UnloadTexture(texture); // Unload texture
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UnloadModel(model); // Unload model
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CloseWindow(); // Close window and OpenGL context
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//--------------------------------------------------------------------------------------
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return 0;
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}
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// #define _USE_MATH_DEFINES
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// #include <stdlib.h>
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// #include <stdio.h>
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// #include <math.h>
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// #include <assert.h>
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// //#include "glad/glad.h"
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// #define GLAD_MALLOC(sz) malloc(sz)
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// #define GLAD_FREE(sz) free(sz)
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// //#define GLAD_GL_IMPLEMENTATION
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// #include "../thirdparty/raylib/src/external/glad.h"
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// #include "GLFW/glfw3.h"
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// #include "raylib.h"
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// #define LIGHTMAPPER_IMPLEMENTATION
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// #define LM_DEBUG_INTERPOLATION
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// #include "lightmapper.h"
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// #ifndef M_PI // even with _USE_MATH_DEFINES not always available
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// #define M_PI 3.14159265358979323846
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// #endif
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// typedef struct {
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// float p[3];
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// float t[2];
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// } vertex_t;
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// typedef struct
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// {
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// GLuint program;
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// GLint u_lightmap;
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// GLint u_projection;
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// GLint u_view;
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// GLuint lightmap;
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// int w, h;
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// Model raylib_model;
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// GLuint vao, vbo, ibo;
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// vertex_t *vertices;
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// unsigned short *indices;
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// unsigned int vertexCount, indexCount;
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// } scene_t;
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// static int initScene(scene_t *scene);
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// static void drawScene(scene_t *scene, float *view, float *projection);
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// static void destroyScene(scene_t *scene);
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// static int bake(scene_t *scene)
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// {
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// lm_context *ctx = lmCreate(
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// 64, // hemisphere resolution (power of two, max=512)
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// 0.001f, 100.0f, // zNear, zFar of hemisphere cameras
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// 1.0f, 1.0f, 1.0f, // background color (white for ambient occlusion)
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// 2, 0.01f, // lightmap interpolation threshold (small differences are interpolated rather than sampled)
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// // check debug_interpolation.tga for an overview of sampled (red) vs interpolated (green) pixels.
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// 0.0f); // modifier for camera-to-surface distance for hemisphere rendering.
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// // tweak this to trade-off between interpolated normals quality and other artifacts (see declaration).
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// if (!ctx)
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// {
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// fprintf(stderr, "Error: Could not initialize lightmapper.\n");
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// return 0;
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// }
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// int w = scene->w, h = scene->h;
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// float *data = calloc(w * h * 4, sizeof(float));
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// lmSetTargetLightmap(ctx, data, w, h, 4);
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// lmSetGeometry(ctx, NULL, // no transformation in this example
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// LM_FLOAT, (unsigned char*)scene->vertices + offsetof(vertex_t, p), sizeof(vertex_t),
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// LM_NONE , NULL , 0 , // no interpolated normals in this example
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// LM_FLOAT, (unsigned char*)scene->vertices + offsetof(vertex_t, t), sizeof(vertex_t),
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// scene->indexCount, LM_UNSIGNED_SHORT, scene->indices);
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// int vp[4];
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// float view[16], projection[16];
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// double lastUpdateTime = 0.0;
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// while (lmBegin(ctx, vp, view, projection))
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// {
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// // render to lightmapper framebuffer
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// glViewport(vp[0], vp[1], vp[2], vp[3]);
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// drawScene(scene, view, projection);
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// // display progress every second (printf is expensive)
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// double time = glfwGetTime();
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// if (time - lastUpdateTime > 1.0)
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// {
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// lastUpdateTime = time;
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// printf("\r%6.2f%%", lmProgress(ctx) * 100.0f);
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// fflush(stdout);
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// }
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// lmEnd(ctx);
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// }
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// printf("\rFinished baking %d triangles.\n", scene->indexCount / 3);
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// lmDestroy(ctx);
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// // postprocess texture
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// float *temp = calloc(w * h * 4, sizeof(float));
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// for (int i = 0; i < 16; i++)
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// {
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// lmImageDilate(data, temp, w, h, 4);
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// lmImageDilate(temp, data, w, h, 4);
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// }
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// lmImageSmooth(data, temp, w, h, 4);
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// lmImageDilate(temp, data, w, h, 4);
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// lmImagePower(data, w, h, 4, 1.0f / 2.2f, 0x7); // gamma correct color channels
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// free(temp);
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// // save result to a file
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// if (lmImageSaveTGAf("result.tga", data, w, h, 4, 1.0f))
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// printf("Saved result.tga\n");
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// // upload result
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// glBindTexture(GL_TEXTURE_2D, scene->lightmap);
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// glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, w, h, 0, GL_RGBA, GL_FLOAT, data);
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// free(data);
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// return 1;
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// }
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// static void error_callback(int error, const char *description)
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// {
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// fprintf(stderr, "Error: %s\n", description);
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// }
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// static void fpsCameraViewMatrix(GLFWwindow *window, float *view);
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// static void perspectiveMatrix(float *out, float fovy, float aspect, float zNear, float zFar);
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// static void mainLoop(GLFWwindow *window, scene_t *scene)
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// {
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// glfwPollEvents();
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// if (glfwGetKey(window, GLFW_KEY_SPACE) == GLFW_PRESS)
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// bake(scene);
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// int w, h;
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// glfwGetFramebufferSize(window, &w, &h);
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// glViewport(0, 0, w, h);
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// // camera for glfw window
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// float view[16], projection[16];
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// fpsCameraViewMatrix(window, view);
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// perspectiveMatrix(projection, 45.0f, (float)w / (float)h, 0.01f, 100.0f);
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// // draw to screen with a blueish sky
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// glClearColor(0.6f, 0.8f, 1.0f, 1.0f);
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// glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
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// drawScene(scene, view, projection);
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// glfwSwapBuffers(window);
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// }
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// int main(int argc, char* argv[])
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// {
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// glfwSetErrorCallback(error_callback);
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// if (!glfwInit())
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// {
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// fprintf(stderr, "Could not initialize GLFW.\n");
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// return EXIT_FAILURE;
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// }
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// glfwWindowHint(GLFW_RED_BITS, 8);
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// glfwWindowHint(GLFW_GREEN_BITS, 8);
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// glfwWindowHint(GLFW_BLUE_BITS, 8);
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||||||
|
// glfwWindowHint(GLFW_ALPHA_BITS, 8);
|
||||||
|
// glfwWindowHint(GLFW_DEPTH_BITS, 32);
|
||||||
|
// glfwWindowHint(GLFW_STENCIL_BITS, GLFW_DONT_CARE);
|
||||||
|
// glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
|
||||||
|
// glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 2);
|
||||||
|
// glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);
|
||||||
|
// glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
|
||||||
|
// glfwWindowHint(GLFW_OPENGL_DEBUG_CONTEXT, GL_TRUE);
|
||||||
|
// glfwWindowHint(GLFW_SAMPLES, 4);
|
||||||
|
|
||||||
|
// GLFWwindow *window = glfwCreateWindow(1024, 768, "Lightmapping Example", NULL, NULL);
|
||||||
|
// if (!window)
|
||||||
|
// {
|
||||||
|
// fprintf(stderr, "Could not create window.\n");
|
||||||
|
// glfwTerminate();
|
||||||
|
// return EXIT_FAILURE;
|
||||||
|
// }
|
||||||
|
|
||||||
|
// glfwMakeContextCurrent(window);
|
||||||
|
// gladLoadGL((GLADloadfunc)glfwGetProcAddress);
|
||||||
|
// glfwSwapInterval(1);
|
||||||
|
|
||||||
|
// scene_t scene = {0};
|
||||||
|
// if (!initScene(&scene))
|
||||||
|
// {
|
||||||
|
// fprintf(stderr, "Could not initialize scene.\n");
|
||||||
|
// glfwDestroyWindow(window);
|
||||||
|
// glfwTerminate();
|
||||||
|
// return EXIT_FAILURE;
|
||||||
|
// }
|
||||||
|
|
||||||
|
// printf("Ambient Occlusion Baking Example.\n");
|
||||||
|
// printf("Use your mouse and the W, A, S, D, E, Q keys to navigate.\n");
|
||||||
|
// printf("Press SPACE to start baking one light bounce!\n");
|
||||||
|
// printf("This will take a few seconds and bake a lightmap illuminated by:\n");
|
||||||
|
// printf("1. The mesh itself (initially black)\n");
|
||||||
|
// printf("2. A white sky (1.0f, 1.0f, 1.0f)\n");
|
||||||
|
|
||||||
|
// while (!glfwWindowShouldClose(window))
|
||||||
|
// {
|
||||||
|
// mainLoop(window, &scene);
|
||||||
|
// }
|
||||||
|
|
||||||
|
// destroyScene(&scene);
|
||||||
|
// glfwDestroyWindow(window);
|
||||||
|
// glfwTerminate();
|
||||||
|
// return EXIT_SUCCESS;
|
||||||
|
// }
|
||||||
|
|
||||||
|
// // helpers ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
||||||
|
// static int loadSimpleObjFile(const char *filename, vertex_t **vertices, unsigned int *vertexCount, unsigned short **indices, unsigned int *indexCount);
|
||||||
|
// static GLuint loadProgram(const char *vp, const char *fp, const char **attributes, int attributeCount);
|
||||||
|
|
||||||
|
// static int initScene(scene_t *scene)
|
||||||
|
// {
|
||||||
|
// // load mesh
|
||||||
|
// scene->raylib_model = LoadModel("thirdparty/lightmapper/example/gazebo.obj");
|
||||||
|
// //scene->vertices = myModel.meshes[0].
|
||||||
|
// if (!loadSimpleObjFile("thirdparty/lightmapper/example/gazebo.obj", &scene->vertices, &scene->vertexCount, &scene->indices, &scene->indexCount))
|
||||||
|
// {
|
||||||
|
// fprintf(stderr, "Error loading obj file\n");
|
||||||
|
// return 0;
|
||||||
|
// }
|
||||||
|
|
||||||
|
// glGenVertexArrays(1, &scene->vao);
|
||||||
|
// glBindVertexArray(scene->vao);
|
||||||
|
|
||||||
|
// glGenBuffers(1, &scene->vbo);
|
||||||
|
// glBindBuffer(GL_ARRAY_BUFFER, scene->vbo);
|
||||||
|
// glBufferData(GL_ARRAY_BUFFER, scene->vertexCount * sizeof(vertex_t), scene->vertices, GL_STATIC_DRAW);
|
||||||
|
|
||||||
|
// glGenBuffers(1, &scene->ibo);
|
||||||
|
// glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, scene->ibo);
|
||||||
|
// glBufferData(GL_ELEMENT_ARRAY_BUFFER, scene->indexCount * sizeof(unsigned short), scene->indices, GL_STATIC_DRAW);
|
||||||
|
|
||||||
|
// glEnableVertexAttribArray(0);
|
||||||
|
// glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, sizeof(vertex_t), (void*)offsetof(vertex_t, p));
|
||||||
|
// glEnableVertexAttribArray(1);
|
||||||
|
// glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, sizeof(vertex_t), (void*)offsetof(vertex_t, t));
|
||||||
|
|
||||||
|
// // create lightmap texture
|
||||||
|
// scene->w = 654;
|
||||||
|
// scene->h = 654;
|
||||||
|
// glGenTextures(1, &scene->lightmap);
|
||||||
|
// glBindTexture(GL_TEXTURE_2D, scene->lightmap);
|
||||||
|
// glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
|
||||||
|
// glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
|
||||||
|
// glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
|
||||||
|
// glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
|
||||||
|
// unsigned char emissive[] = { 0, 0, 0, 255 };
|
||||||
|
// glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 1, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, emissive);
|
||||||
|
|
||||||
|
// // load shader
|
||||||
|
// const char *vp =
|
||||||
|
// "#version 150 core\n"
|
||||||
|
// "in vec3 a_position;\n"
|
||||||
|
// "in vec2 a_texcoord;\n"
|
||||||
|
// "uniform mat4 u_view;\n"
|
||||||
|
// "uniform mat4 u_projection;\n"
|
||||||
|
// "out vec2 v_texcoord;\n"
|
||||||
|
|
||||||
|
// "void main()\n"
|
||||||
|
// "{\n"
|
||||||
|
// "gl_Position = u_projection * (u_view * vec4(a_position, 1.0));\n"
|
||||||
|
// "v_texcoord = a_texcoord;\n"
|
||||||
|
// "}\n";
|
||||||
|
|
||||||
|
// const char *fp =
|
||||||
|
// "#version 150 core\n"
|
||||||
|
// "in vec2 v_texcoord;\n"
|
||||||
|
// "uniform sampler2D u_lightmap;\n"
|
||||||
|
// "out vec4 o_color;\n"
|
||||||
|
|
||||||
|
// "void main()\n"
|
||||||
|
// "{\n"
|
||||||
|
// "o_color = vec4(texture(u_lightmap, v_texcoord).rgb, gl_FrontFacing ? 1.0 : 0.0);\n"
|
||||||
|
// "}\n";
|
||||||
|
|
||||||
|
// const char *attribs[] =
|
||||||
|
// {
|
||||||
|
// "a_position",
|
||||||
|
// "a_texcoord"
|
||||||
|
// };
|
||||||
|
|
||||||
|
// scene->program = loadProgram(vp, fp, attribs, 2);
|
||||||
|
// if (!scene->program)
|
||||||
|
// {
|
||||||
|
// fprintf(stderr, "Error loading shader\n");
|
||||||
|
// return 0;
|
||||||
|
// }
|
||||||
|
// scene->u_view = glGetUniformLocation(scene->program, "u_view");
|
||||||
|
// scene->u_projection = glGetUniformLocation(scene->program, "u_projection");
|
||||||
|
// scene->u_lightmap = glGetUniformLocation(scene->program, "u_lightmap");
|
||||||
|
|
||||||
|
// return 1;
|
||||||
|
// }
|
||||||
|
|
||||||
|
// static void drawScene(scene_t *scene, float *view, float *projection)
|
||||||
|
// {
|
||||||
|
// glEnable(GL_DEPTH_TEST);
|
||||||
|
|
||||||
|
// glUseProgram(scene->program);
|
||||||
|
// glUniform1i(scene->u_lightmap, 0);
|
||||||
|
// glUniformMatrix4fv(scene->u_projection, 1, GL_FALSE, projection);
|
||||||
|
// glUniformMatrix4fv(scene->u_view, 1, GL_FALSE, view);
|
||||||
|
|
||||||
|
// glBindTexture(GL_TEXTURE_2D, scene->lightmap);
|
||||||
|
|
||||||
|
// glBindVertexArray(scene->vao);
|
||||||
|
// glDrawElements(GL_TRIANGLES, scene->indexCount, GL_UNSIGNED_SHORT, 0);
|
||||||
|
// }
|
||||||
|
|
||||||
|
// static void destroyScene(scene_t *scene)
|
||||||
|
// {
|
||||||
|
// free(scene->vertices);
|
||||||
|
// free(scene->indices);
|
||||||
|
// glDeleteVertexArrays(1, &scene->vao);
|
||||||
|
// glDeleteBuffers(1, &scene->vbo);
|
||||||
|
// glDeleteBuffers(1, &scene->ibo);
|
||||||
|
// glDeleteTextures(1, &scene->lightmap);
|
||||||
|
// glDeleteProgram(scene->program);
|
||||||
|
// }
|
||||||
|
|
||||||
|
// static int loadSimpleObjFile(const char *filename, vertex_t **vertices, unsigned int *vertexCount, unsigned short **indices, unsigned int *indexCount)
|
||||||
|
// {
|
||||||
|
// FILE *file = fopen(filename, "rt");
|
||||||
|
// if (!file)
|
||||||
|
// return 0;
|
||||||
|
// char line[1024];
|
||||||
|
|
||||||
|
// // first pass
|
||||||
|
// unsigned int np = 0, nn = 0, nt = 0, nf = 0;
|
||||||
|
// while (!feof(file))
|
||||||
|
// {
|
||||||
|
// fgets(line, 1024, file);
|
||||||
|
// if (line[0] == '#') continue;
|
||||||
|
// if (line[0] == 'v')
|
||||||
|
// {
|
||||||
|
// if (line[1] == ' ') { np++; continue; }
|
||||||
|
// if (line[1] == 'n') { nn++; continue; }
|
||||||
|
// if (line[1] == 't') { nt++; continue; }
|
||||||
|
// assert(!"unknown vertex attribute");
|
||||||
|
// }
|
||||||
|
// if (line[0] == 'f') { nf++; continue; }
|
||||||
|
// assert(!"unknown identifier");
|
||||||
|
// }
|
||||||
|
// assert(np && np == nn && np == nt && nf); // only supports obj files without separately indexed vertex attributes
|
||||||
|
|
||||||
|
// // allocate memory
|
||||||
|
// *vertexCount = np;
|
||||||
|
// *vertices = calloc(np, sizeof(vertex_t));
|
||||||
|
// *indexCount = nf * 3;
|
||||||
|
// *indices = calloc(nf * 3, sizeof(unsigned short));
|
||||||
|
|
||||||
|
// // second pass
|
||||||
|
// fseek(file, 0, SEEK_SET);
|
||||||
|
// unsigned int cp = 0, cn = 0, ct = 0, cf = 0;
|
||||||
|
// while (!feof(file))
|
||||||
|
// {
|
||||||
|
// fgets(line, 1024, file);
|
||||||
|
// if (line[0] == '#') continue;
|
||||||
|
// if (line[0] == 'v')
|
||||||
|
// {
|
||||||
|
// if (line[1] == ' ') { float *p = (*vertices)[cp++].p; char *e1, *e2; p[0] = (float)strtod(line + 2, &e1); p[1] = (float)strtod(e1, &e2); p[2] = (float)strtod(e2, 0); continue; }
|
||||||
|
// if (line[1] == 'n') { /*float *n = (*vertices)[cn++].n; char *e1, *e2; n[0] = (float)strtod(line + 3, &e1); n[1] = (float)strtod(e1, &e2); n[2] = (float)strtod(e2, 0);*/ continue; } // no normals needed
|
||||||
|
// if (line[1] == 't') { float *t = (*vertices)[ct++].t; char *e1; t[0] = (float)strtod(line + 3, &e1); t[1] = (float)strtod(e1, 0); continue; }
|
||||||
|
// assert(!"unknown vertex attribute");
|
||||||
|
// }
|
||||||
|
// if (line[0] == 'f')
|
||||||
|
// {
|
||||||
|
// unsigned short *tri = (*indices) + cf;
|
||||||
|
// cf += 3;
|
||||||
|
// char *e1, *e2, *e3 = line + 1;
|
||||||
|
// for (int i = 0; i < 3; i++)
|
||||||
|
// {
|
||||||
|
// unsigned long pi = strtoul(e3 + 1, &e1, 10);
|
||||||
|
// assert(e1[0] == '/');
|
||||||
|
// unsigned long ti = strtoul(e1 + 1, &e2, 10);
|
||||||
|
// assert(e2[0] == '/');
|
||||||
|
// unsigned long ni = strtoul(e2 + 1, &e3, 10);
|
||||||
|
// assert(pi == ti && pi == ni);
|
||||||
|
// tri[i] = (unsigned short)(pi - 1);
|
||||||
|
// }
|
||||||
|
// continue;
|
||||||
|
// }
|
||||||
|
// assert(!"unknown identifier");
|
||||||
|
// }
|
||||||
|
|
||||||
|
// fclose(file);
|
||||||
|
// return 1;
|
||||||
|
// }
|
||||||
|
|
||||||
|
// static GLuint loadShader(GLenum type, const char *source)
|
||||||
|
// {
|
||||||
|
// GLuint shader = glCreateShader(type);
|
||||||
|
// if (shader == 0)
|
||||||
|
// {
|
||||||
|
// fprintf(stderr, "Could not create shader!\n");
|
||||||
|
// return 0;
|
||||||
|
// }
|
||||||
|
// glShaderSource(shader, 1, &source, NULL);
|
||||||
|
// glCompileShader(shader);
|
||||||
|
// GLint compiled;
|
||||||
|
// glGetShaderiv(shader, GL_COMPILE_STATUS, &compiled);
|
||||||
|
// if (!compiled)
|
||||||
|
// {
|
||||||
|
// fprintf(stderr, "Could not compile shader!\n");
|
||||||
|
// GLint infoLen = 0;
|
||||||
|
// glGetShaderiv(shader, GL_INFO_LOG_LENGTH, &infoLen);
|
||||||
|
// if (infoLen)
|
||||||
|
// {
|
||||||
|
// char* infoLog = (char*)malloc(infoLen);
|
||||||
|
// glGetShaderInfoLog(shader, infoLen, NULL, infoLog);
|
||||||
|
// fprintf(stderr, "%s\n", infoLog);
|
||||||
|
// free(infoLog);
|
||||||
|
// }
|
||||||
|
// glDeleteShader(shader);
|
||||||
|
// return 0;
|
||||||
|
// }
|
||||||
|
// return shader;
|
||||||
|
// }
|
||||||
|
// static GLuint loadProgram(const char *vp, const char *fp, const char **attributes, int attributeCount)
|
||||||
|
// {
|
||||||
|
// GLuint vertexShader = loadShader(GL_VERTEX_SHADER, vp);
|
||||||
|
// if (!vertexShader)
|
||||||
|
// return 0;
|
||||||
|
// GLuint fragmentShader = loadShader(GL_FRAGMENT_SHADER, fp);
|
||||||
|
// if (!fragmentShader)
|
||||||
|
// {
|
||||||
|
// glDeleteShader(vertexShader);
|
||||||
|
// return 0;
|
||||||
|
// }
|
||||||
|
|
||||||
|
// GLuint program = glCreateProgram();
|
||||||
|
// if (program == 0)
|
||||||
|
// {
|
||||||
|
// fprintf(stderr, "Could not create program!\n");
|
||||||
|
// return 0;
|
||||||
|
// }
|
||||||
|
// glAttachShader(program, vertexShader);
|
||||||
|
// glAttachShader(program, fragmentShader);
|
||||||
|
|
||||||
|
// for (int i = 0; i < attributeCount; i++)
|
||||||
|
// glBindAttribLocation(program, i, attributes[i]);
|
||||||
|
|
||||||
|
// glLinkProgram(program);
|
||||||
|
// glDeleteShader(vertexShader);
|
||||||
|
// glDeleteShader(fragmentShader);
|
||||||
|
// GLint linked;
|
||||||
|
// glGetProgramiv(program, GL_LINK_STATUS, &linked);
|
||||||
|
// if (!linked)
|
||||||
|
// {
|
||||||
|
// fprintf(stderr, "Could not link program!\n");
|
||||||
|
// GLint infoLen = 0;
|
||||||
|
// glGetProgramiv(program, GL_INFO_LOG_LENGTH, &infoLen);
|
||||||
|
// if (infoLen)
|
||||||
|
// {
|
||||||
|
// char* infoLog = (char*)malloc(sizeof(char) * infoLen);
|
||||||
|
// glGetProgramInfoLog(program, infoLen, NULL, infoLog);
|
||||||
|
// fprintf(stderr, "%s\n", infoLog);
|
||||||
|
// free(infoLog);
|
||||||
|
// }
|
||||||
|
// glDeleteProgram(program);
|
||||||
|
// return 0;
|
||||||
|
// }
|
||||||
|
// return program;
|
||||||
|
// }
|
||||||
|
|
||||||
|
// static void multiplyMatrices(float *out, float *a, float *b)
|
||||||
|
// {
|
||||||
|
// for (int y = 0; y < 4; y++)
|
||||||
|
// for (int x = 0; x < 4; x++)
|
||||||
|
// out[y * 4 + x] = a[x] * b[y * 4] + a[4 + x] * b[y * 4 + 1] + a[8 + x] * b[y * 4 + 2] + a[12 + x] * b[y * 4 + 3];
|
||||||
|
// }
|
||||||
|
// static void translationMatrix(float *out, float x, float y, float z)
|
||||||
|
// {
|
||||||
|
// out[ 0] = 1.0f; out[ 1] = 0.0f; out[ 2] = 0.0f; out[ 3] = 0.0f;
|
||||||
|
// out[ 4] = 0.0f; out[ 5] = 1.0f; out[ 6] = 0.0f; out[ 7] = 0.0f;
|
||||||
|
// out[ 8] = 0.0f; out[ 9] = 0.0f; out[10] = 1.0f; out[11] = 0.0f;
|
||||||
|
// out[12] = x; out[13] = y; out[14] = z; out[15] = 1.0f;
|
||||||
|
// }
|
||||||
|
// static void rotationMatrix(float *out, float angle, float x, float y, float z)
|
||||||
|
// {
|
||||||
|
// angle *= (float)M_PI / 180.0f;
|
||||||
|
// float c = cosf(angle), s = sinf(angle), c2 = 1.0f - c;
|
||||||
|
// out[ 0] = x*x*c2 + c; out[ 1] = y*x*c2 + z*s; out[ 2] = x*z*c2 - y*s; out[ 3] = 0.0f;
|
||||||
|
// out[ 4] = x*y*c2 - z*s; out[ 5] = y*y*c2 + c; out[ 6] = y*z*c2 + x*s; out[ 7] = 0.0f;
|
||||||
|
// out[ 8] = x*z*c2 + y*s; out[ 9] = y*z*c2 - x*s; out[10] = z*z*c2 + c; out[11] = 0.0f;
|
||||||
|
// out[12] = 0.0f; out[13] = 0.0f; out[14] = 0.0f; out[15] = 1.0f;
|
||||||
|
// }
|
||||||
|
// static void transformPosition(float *out, float *m, float *p)
|
||||||
|
// {
|
||||||
|
// float d = 1.0f / (m[3] * p[0] + m[7] * p[1] + m[11] * p[2] + m[15]);
|
||||||
|
// out[2] = d * (m[2] * p[0] + m[6] * p[1] + m[10] * p[2] + m[14]);
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// out[1] = d * (m[1] * p[0] + m[5] * p[1] + m[ 9] * p[2] + m[13]);
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// out[0] = d * (m[0] * p[0] + m[4] * p[1] + m[ 8] * p[2] + m[12]);
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// }
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// static void transposeMatrix(float *out, float *m)
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// {
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// out[ 0] = m[0]; out[ 1] = m[4]; out[ 2] = m[ 8]; out[ 3] = m[12];
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// out[ 4] = m[1]; out[ 5] = m[5]; out[ 6] = m[ 9]; out[ 7] = m[13];
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// out[ 8] = m[2]; out[ 9] = m[6]; out[10] = m[10]; out[11] = m[14];
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// out[12] = m[3]; out[13] = m[7]; out[14] = m[11]; out[15] = m[15];
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// }
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||||||
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// static void perspectiveMatrix(float *out, float fovy, float aspect, float zNear, float zFar)
|
||||||
|
// {
|
||||||
|
// float f = 1.0f / tanf(fovy * (float)M_PI / 360.0f);
|
||||||
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// float izFN = 1.0f / (zNear - zFar);
|
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// out[ 0] = f / aspect; out[ 1] = 0.0f; out[ 2] = 0.0f; out[ 3] = 0.0f;
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||||||
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// out[ 4] = 0.0f; out[ 5] = f; out[ 6] = 0.0f; out[ 7] = 0.0f;
|
||||||
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// out[ 8] = 0.0f; out[ 9] = 0.0f; out[10] = (zFar + zNear) * izFN; out[11] = -1.0f;
|
||||||
|
// out[12] = 0.0f; out[13] = 0.0f; out[14] = 2.0f * zFar * zNear * izFN; out[15] = 0.0f;
|
||||||
|
// }
|
||||||
|
|
||||||
|
// static void fpsCameraViewMatrix(GLFWwindow *window, float *view)
|
||||||
|
// {
|
||||||
|
// // initial camera config
|
||||||
|
// static float position[] = { 0.0f, 0.3f, 1.5f };
|
||||||
|
// static float rotation[] = { 0.0f, 0.0f };
|
||||||
|
|
||||||
|
// // mouse look
|
||||||
|
// static double lastMouse[] = { 0.0, 0.0 };
|
||||||
|
// double mouse[2];
|
||||||
|
// glfwGetCursorPos(window, &mouse[0], &mouse[1]);
|
||||||
|
// if (glfwGetMouseButton(window, GLFW_MOUSE_BUTTON_LEFT) == GLFW_PRESS)
|
||||||
|
// {
|
||||||
|
// rotation[0] += (float)(mouse[1] - lastMouse[1]) * -0.2f;
|
||||||
|
// rotation[1] += (float)(mouse[0] - lastMouse[0]) * -0.2f;
|
||||||
|
// }
|
||||||
|
// lastMouse[0] = mouse[0];
|
||||||
|
// lastMouse[1] = mouse[1];
|
||||||
|
|
||||||
|
// float rotationY[16], rotationX[16], rotationYX[16];
|
||||||
|
// rotationMatrix(rotationX, rotation[0], 1.0f, 0.0f, 0.0f);
|
||||||
|
// rotationMatrix(rotationY, rotation[1], 0.0f, 1.0f, 0.0f);
|
||||||
|
// multiplyMatrices(rotationYX, rotationY, rotationX);
|
||||||
|
|
||||||
|
// // keyboard movement (WSADEQ)
|
||||||
|
// float speed = (glfwGetKey(window, GLFW_KEY_LEFT_SHIFT) == GLFW_PRESS) ? 0.1f : 0.01f;
|
||||||
|
// float movement[3] = {0};
|
||||||
|
// if (glfwGetKey(window, GLFW_KEY_W) == GLFW_PRESS) movement[2] -= speed;
|
||||||
|
// if (glfwGetKey(window, GLFW_KEY_S) == GLFW_PRESS) movement[2] += speed;
|
||||||
|
// if (glfwGetKey(window, GLFW_KEY_A) == GLFW_PRESS) movement[0] -= speed;
|
||||||
|
// if (glfwGetKey(window, GLFW_KEY_D) == GLFW_PRESS) movement[0] += speed;
|
||||||
|
// if (glfwGetKey(window, GLFW_KEY_E) == GLFW_PRESS) movement[1] -= speed;
|
||||||
|
// if (glfwGetKey(window, GLFW_KEY_Q) == GLFW_PRESS) movement[1] += speed;
|
||||||
|
|
||||||
|
// float worldMovement[3];
|
||||||
|
// transformPosition(worldMovement, rotationYX, movement);
|
||||||
|
// position[0] += worldMovement[0];
|
||||||
|
// position[1] += worldMovement[1];
|
||||||
|
// position[2] += worldMovement[2];
|
||||||
|
|
||||||
|
// // construct view matrix
|
||||||
|
// float inverseRotation[16], inverseTranslation[16];
|
||||||
|
// transposeMatrix(inverseRotation, rotationYX);
|
||||||
|
// translationMatrix(inverseTranslation, -position[0], -position[1], -position[2]);
|
||||||
|
// multiplyMatrices(view, inverseRotation, inverseTranslation); // = inverse(translation(position) * rotationYX);
|
||||||
|
// }
|
||||||
Loading…
Reference in New Issue