mirror of https://github.com/mode777/rayjs.git
add lightmapper
This commit is contained in:
Alexander Klingenbeck
parent
aa2c2ecd15
commit
9b69016ce8
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@ -7,4 +7,7 @@ rayjs.exe
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include/generated/
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.DS_Store
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controls_test
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controls_test.exe
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controls_test.exe
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debug_interpolation.tga
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result.tga
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lightmapper_example
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@ -9,3 +9,6 @@
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path = thirdparty/raygui
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url = https://github.com/raysan5/raygui.git
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branch = tags/3.6
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[submodule "thirdparty/lightmapper"]
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path = thirdparty/lightmapper
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url = https://github.com/ands/lightmapper.git
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@ -4,6 +4,7 @@
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"vs.sc.mtl.bin.h": "c",
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"embedded_shader.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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}
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}
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@ -31,6 +31,9 @@ target_include_directories(quickjs
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${quickjs_sources_root}
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)
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add_library(lightmapper INTERFACE)
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target_include_directories(lightmapper INTERFACE ${CMAKE_CURRENT_SOURCE_DIR}/thirdparty/lightmapper)
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set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR})
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file(GLOB files src/*.c)
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#add_executable(${CMAKE_PROJECT_NAME} MACOSX_BUNDLE ${files})
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@ -40,6 +43,5 @@ target_include_directories(${CMAKE_PROJECT_NAME} PRIVATE src)
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target_include_directories(${CMAKE_PROJECT_NAME} PRIVATE thirdparty/raygui/src)
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target_link_libraries(${CMAKE_PROJECT_NAME} quickjs raylib)
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add_executable(controls_test thirdparty/raygui/examples/controls_test_suite/controls_test_suite.c)
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target_include_directories(controls_test PRIVATE thirdparty/raygui/src)
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target_link_libraries(controls_test raylib)
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add_executable(lightmapper_example src/lightmapper_example.c)
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target_link_libraries(lightmapper_example raylib lightmapper)
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@ -0,0 +1,564 @@
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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);
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glfwWindowHint(GLFW_DEPTH_BITS, 32);
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glfwWindowHint(GLFW_STENCIL_BITS, GLFW_DONT_CARE);
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glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
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glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 2);
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glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);
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glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
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glfwWindowHint(GLFW_OPENGL_DEBUG_CONTEXT, GL_TRUE);
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glfwWindowHint(GLFW_SAMPLES, 4);
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GLFWwindow *window = glfwCreateWindow(1024, 768, "Lightmapping Example", NULL, NULL);
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if (!window)
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{
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fprintf(stderr, "Could not create window.\n");
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glfwTerminate();
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return EXIT_FAILURE;
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}
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glfwMakeContextCurrent(window);
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gladLoadGL((GLADloadfunc)glfwGetProcAddress);
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glfwSwapInterval(1);
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scene_t scene = {0};
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if (!initScene(&scene))
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{
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fprintf(stderr, "Could not initialize scene.\n");
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glfwDestroyWindow(window);
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glfwTerminate();
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return EXIT_FAILURE;
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}
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printf("Ambient Occlusion Baking Example.\n");
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printf("Use your mouse and the W, A, S, D, E, Q keys to navigate.\n");
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printf("Press SPACE to start baking one light bounce!\n");
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printf("This will take a few seconds and bake a lightmap illuminated by:\n");
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printf("1. The mesh itself (initially black)\n");
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printf("2. A white sky (1.0f, 1.0f, 1.0f)\n");
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while (!glfwWindowShouldClose(window))
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{
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mainLoop(window, &scene);
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}
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destroyScene(&scene);
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glfwDestroyWindow(window);
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glfwTerminate();
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return EXIT_SUCCESS;
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}
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// helpers ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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static int loadSimpleObjFile(const char *filename, vertex_t **vertices, unsigned int *vertexCount, unsigned short **indices, unsigned int *indexCount);
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static GLuint loadProgram(const char *vp, const char *fp, const char **attributes, int attributeCount);
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static int initScene(scene_t *scene)
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{
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// load mesh
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scene->raylib_model = LoadModel("thirdparty/lightmapper/example/gazebo.obj");
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//scene->vertices = myModel.meshes[0].
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if (!loadSimpleObjFile("thirdparty/lightmapper/example/gazebo.obj", &scene->vertices, &scene->vertexCount, &scene->indices, &scene->indexCount))
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{
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fprintf(stderr, "Error loading obj file\n");
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return 0;
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}
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glGenVertexArrays(1, &scene->vao);
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glBindVertexArray(scene->vao);
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glGenBuffers(1, &scene->vbo);
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glBindBuffer(GL_ARRAY_BUFFER, scene->vbo);
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glBufferData(GL_ARRAY_BUFFER, scene->vertexCount * sizeof(vertex_t), scene->vertices, GL_STATIC_DRAW);
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glGenBuffers(1, &scene->ibo);
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glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, scene->ibo);
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glBufferData(GL_ELEMENT_ARRAY_BUFFER, scene->indexCount * sizeof(unsigned short), scene->indices, GL_STATIC_DRAW);
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glEnableVertexAttribArray(0);
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glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, sizeof(vertex_t), (void*)offsetof(vertex_t, p));
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glEnableVertexAttribArray(1);
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glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, sizeof(vertex_t), (void*)offsetof(vertex_t, t));
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// create lightmap texture
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scene->w = 654;
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scene->h = 654;
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glGenTextures(1, &scene->lightmap);
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glBindTexture(GL_TEXTURE_2D, scene->lightmap);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
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unsigned char emissive[] = { 0, 0, 0, 255 };
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glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 1, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, emissive);
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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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scene->program = loadProgram(vp, fp, attribs, 2);
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if (!scene->program)
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{
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fprintf(stderr, "Error loading shader\n");
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return 0;
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}
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scene->u_view = glGetUniformLocation(scene->program, "u_view");
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scene->u_projection = glGetUniformLocation(scene->program, "u_projection");
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scene->u_lightmap = glGetUniformLocation(scene->program, "u_lightmap");
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return 1;
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}
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static void drawScene(scene_t *scene, float *view, float *projection)
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{
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glEnable(GL_DEPTH_TEST);
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glUseProgram(scene->program);
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glUniform1i(scene->u_lightmap, 0);
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glUniformMatrix4fv(scene->u_projection, 1, GL_FALSE, projection);
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glUniformMatrix4fv(scene->u_view, 1, GL_FALSE, view);
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glBindTexture(GL_TEXTURE_2D, scene->lightmap);
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glBindVertexArray(scene->vao);
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glDrawElements(GL_TRIANGLES, scene->indexCount, GL_UNSIGNED_SHORT, 0);
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}
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static void destroyScene(scene_t *scene)
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{
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free(scene->vertices);
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free(scene->indices);
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glDeleteVertexArrays(1, &scene->vao);
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glDeleteBuffers(1, &scene->vbo);
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glDeleteBuffers(1, &scene->ibo);
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glDeleteTextures(1, &scene->lightmap);
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glDeleteProgram(scene->program);
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}
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static int loadSimpleObjFile(const char *filename, vertex_t **vertices, unsigned int *vertexCount, unsigned short **indices, unsigned int *indexCount)
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{
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FILE *file = fopen(filename, "rt");
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if (!file)
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return 0;
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char line[1024];
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// first pass
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unsigned int np = 0, nn = 0, nt = 0, nf = 0;
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while (!feof(file))
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{
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fgets(line, 1024, file);
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if (line[0] == '#') continue;
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if (line[0] == 'v')
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{
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if (line[1] == ' ') { np++; continue; }
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if (line[1] == 'n') { nn++; continue; }
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if (line[1] == 't') { nt++; continue; }
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assert(!"unknown vertex attribute");
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}
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if (line[0] == 'f') { nf++; continue; }
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assert(!"unknown identifier");
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}
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assert(np && np == nn && np == nt && nf); // only supports obj files without separately indexed vertex attributes
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// allocate memory
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*vertexCount = np;
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*vertices = calloc(np, sizeof(vertex_t));
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*indexCount = nf * 3;
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*indices = calloc(nf * 3, sizeof(unsigned short));
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// second pass
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fseek(file, 0, SEEK_SET);
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unsigned int cp = 0, cn = 0, ct = 0, cf = 0;
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while (!feof(file))
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{
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fgets(line, 1024, file);
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if (line[0] == '#') continue;
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if (line[0] == 'v')
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{
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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; }
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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
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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; }
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assert(!"unknown vertex attribute");
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}
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if (line[0] == 'f')
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{
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unsigned short *tri = (*indices) + cf;
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cf += 3;
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char *e1, *e2, *e3 = line + 1;
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for (int i = 0; i < 3; i++)
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{
|
||||
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]);
|
||||
out[1] = d * (m[1] * p[0] + m[5] * p[1] + m[ 9] * p[2] + m[13]);
|
||||
out[0] = d * (m[0] * p[0] + m[4] * p[1] + m[ 8] * p[2] + m[12]);
|
||||
}
|
||||
static void transposeMatrix(float *out, float *m)
|
||||
{
|
||||
out[ 0] = m[0]; out[ 1] = m[4]; out[ 2] = m[ 8]; out[ 3] = m[12];
|
||||
out[ 4] = m[1]; out[ 5] = m[5]; out[ 6] = m[ 9]; out[ 7] = m[13];
|
||||
out[ 8] = m[2]; out[ 9] = m[6]; out[10] = m[10]; out[11] = m[14];
|
||||
out[12] = m[3]; out[13] = m[7]; out[14] = m[11]; out[15] = m[15];
|
||||
}
|
||||
static void perspectiveMatrix(float *out, float fovy, float aspect, float zNear, float zFar)
|
||||
{
|
||||
float f = 1.0f / tanf(fovy * (float)M_PI / 360.0f);
|
||||
float izFN = 1.0f / (zNear - zFar);
|
||||
out[ 0] = f / aspect; out[ 1] = 0.0f; out[ 2] = 0.0f; out[ 3] = 0.0f;
|
||||
out[ 4] = 0.0f; out[ 5] = f; out[ 6] = 0.0f; out[ 7] = 0.0f;
|
||||
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);
|
||||
}
|
||||
|
|
@ -0,0 +1 @@
|
|||
Subproject commit 4fd3bf4e2c07263f85d5d875ebdef061bc512dd4
|
||||
Loading…
Reference in New Issue