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-rw-r--r--source/main.cpp255
-rw-r--r--source/shaders/depth_test.fs.glsl30
-rw-r--r--source/shaders/depth_test.vs.glsl (renamed from source/shaders/model/model.vs.glsl)8
-rw-r--r--source/shaders/model/model.fs.glsl152
4 files changed, 231 insertions, 214 deletions
diff --git a/source/main.cpp b/source/main.cpp
index 18a816b..80eb2d6 100644
--- a/source/main.cpp
+++ b/source/main.cpp
@@ -36,7 +36,6 @@ typedef double r64;
typedef u8 b8;
-
#include "math.h"
// =========== Shader Loading =============
@@ -129,6 +128,40 @@ Vec3 camera_look_around(r32 angle_pitch, r32 angle_yaw)
return camera_look;
}
+s32 gl_load_texture(u32 texture_id, const char* path)
+{
+ s32 width, height, nrChannels;
+ unsigned char *data = stbi_load(path, &width, &height, &nrChannels, 0);
+ if (data)
+ {
+ GLenum format;
+ if (nrChannels == 1)
+ format = GL_RED;
+ else if (nrChannels == 3)
+ format = GL_RGB;
+ else if (nrChannels == 4)
+ format = GL_RGBA;
+
+ glBindTexture(GL_TEXTURE_2D, texture_id);
+ glTexImage2D(GL_TEXTURE_2D, 0, format, width, height, 0, format, GL_UNSIGNED_BYTE, data);
+ glGenerateMipmap(GL_TEXTURE_2D);
+
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+
+ stbi_image_free(data);
+ }
+ else
+ {
+ printf("failed to load image texture at path: %s", path);
+ stbi_image_free(data);
+ }
+
+ return texture_id;
+}
+
// =================== Model Loading ========================
// This section contains a whole host of things:
// 1. classes
@@ -439,7 +472,7 @@ int main(int argc, char* argv[])
SDL_WINDOW_OPENGL);
SDL_SetRelativeMouseMode(SDL_TRUE);
-
+
// create an opengl context
SDL_GLContext context = SDL_GL_CreateContext(window);
if (!context)
@@ -457,20 +490,109 @@ int main(int argc, char* argv[])
// filesystem playground stuff
size_t read_count;
- char* vertex_source = (char*)SDL_LoadFile("./source/shaders/model/model.vs.glsl", &read_count);
- char* fragment_source = (char*)SDL_LoadFile("./source/shaders/model/model.fs.glsl", &read_count);
+ char* vertex_source = (char*)SDL_LoadFile("./source/shaders/depth_test.vs.glsl", &read_count);
+ char* fragment_source = (char*)SDL_LoadFile("./source/shaders/depth_test.fs.glsl", &read_count);
GLuint vertex_shader = gl_create_vertex_shader(vertex_source);
GLuint fragment_shader = gl_create_fragment_shader(fragment_source);
GLuint shader_program = gl_create_shader_program(vertex_shader, fragment_shader);
printf("Successfully compiled shaders.\n");
- glUseProgram(shader_program);
+ float cubeVertices[] = {
+ // positions // texture Coords
+ -0.5f, -0.5f, -0.5f, 0.0f, 0.0f,
+ 0.5f, -0.5f, -0.5f, 1.0f, 0.0f,
+ 0.5f, 0.5f, -0.5f, 1.0f, 1.0f,
+ 0.5f, 0.5f, -0.5f, 1.0f, 1.0f,
+ -0.5f, 0.5f, -0.5f, 0.0f, 1.0f,
+ -0.5f, -0.5f, -0.5f, 0.0f, 0.0f,
+
+ -0.5f, -0.5f, 0.5f, 0.0f, 0.0f,
+ 0.5f, -0.5f, 0.5f, 1.0f, 0.0f,
+ 0.5f, 0.5f, 0.5f, 1.0f, 1.0f,
+ 0.5f, 0.5f, 0.5f, 1.0f, 1.0f,
+ -0.5f, 0.5f, 0.5f, 0.0f, 1.0f,
+ -0.5f, -0.5f, 0.5f, 0.0f, 0.0f,
+
+ -0.5f, 0.5f, 0.5f, 1.0f, 0.0f,
+ -0.5f, 0.5f, -0.5f, 1.0f, 1.0f,
+ -0.5f, -0.5f, -0.5f, 0.0f, 1.0f,
+ -0.5f, -0.5f, -0.5f, 0.0f, 1.0f,
+ -0.5f, -0.5f, 0.5f, 0.0f, 0.0f,
+ -0.5f, 0.5f, 0.5f, 1.0f, 0.0f,
+
+ 0.5f, 0.5f, 0.5f, 1.0f, 0.0f,
+ 0.5f, 0.5f, -0.5f, 1.0f, 1.0f,
+ 0.5f, -0.5f, -0.5f, 0.0f, 1.0f,
+ 0.5f, -0.5f, -0.5f, 0.0f, 1.0f,
+ 0.5f, -0.5f, 0.5f, 0.0f, 0.0f,
+ 0.5f, 0.5f, 0.5f, 1.0f, 0.0f,
+
+ -0.5f, -0.5f, -0.5f, 0.0f, 1.0f,
+ 0.5f, -0.5f, -0.5f, 1.0f, 1.0f,
+ 0.5f, -0.5f, 0.5f, 1.0f, 0.0f,
+ 0.5f, -0.5f, 0.5f, 1.0f, 0.0f,
+ -0.5f, -0.5f, 0.5f, 0.0f, 0.0f,
+ -0.5f, -0.5f, -0.5f, 0.0f, 1.0f,
+
+ -0.5f, 0.5f, -0.5f, 0.0f, 1.0f,
+ 0.5f, 0.5f, -0.5f, 1.0f, 1.0f,
+ 0.5f, 0.5f, 0.5f, 1.0f, 0.0f,
+ 0.5f, 0.5f, 0.5f, 1.0f, 0.0f,
+ -0.5f, 0.5f, 0.5f, 0.0f, 0.0f,
+ -0.5f, 0.5f, -0.5f, 0.0f, 1.0f
+ };
+ float planeVertices[] = {
+ // positions // texture Coords (note we set these higher than 1 (together with GL_REPEAT as texture wrapping mode). this will cause the floor texture to repeat)
+ 5.0f, -0.5f, 5.0f, 2.0f, 0.0f,
+ -5.0f, -0.5f, 5.0f, 0.0f, 0.0f,
+ -5.0f, -0.5f, -5.0f, 0.0f, 2.0f,
+
+ 5.0f, -0.5f, 5.0f, 2.0f, 0.0f,
+ -5.0f, -0.5f, -5.0f, 0.0f, 2.0f,
+ 5.0f, -0.5f, -5.0f, 2.0f, 2.0f
+ };
stbi_set_flip_vertically_on_load(1);
- // ============ Start Model handling using Assimp ============
- // loading a 3d model using assimp
- Model test_model = Model(std::string("assets/Survival_Backpack/backpack.obj"));
+
+ u32 cube_vao, cube_vbo, plane_vao, plane_vbo;
+
+ glGenVertexArrays(1, &cube_vao);
+ glGenBuffers(1, &cube_vbo);
+
+ glBindVertexArray(cube_vao);
+ glBindBuffer(GL_ARRAY_BUFFER, cube_vbo);
+ glBufferData(GL_ARRAY_BUFFER, sizeof(cubeVertices), &cubeVertices, GL_STATIC_DRAW);
+ glEnableVertexAttribArray(0);
+ glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 5 * sizeof(float), (void*)0);
+ glEnableVertexAttribArray(1);
+ glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, 5 * sizeof(float), (void*)(3*sizeof(float)));
+ glBindVertexArray(0);
+
+ glGenVertexArrays(1, &plane_vao);
+ glGenBuffers(1, &plane_vbo);
+
+ glBindVertexArray(plane_vao);
+ glBindBuffer(GL_ARRAY_BUFFER, plane_vbo);
+ glBufferData(GL_ARRAY_BUFFER, sizeof(planeVertices), &planeVertices, GL_STATIC_DRAW);
+ glEnableVertexAttribArray(0);
+ glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 5 * sizeof(float), (void*)0);
+ glEnableVertexAttribArray(1);
+ glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, 5 * sizeof(float), (void*)(3*sizeof(float)));
+ glBindVertexArray(0);
+
+ u32 cube_tex_id;
+ glGenTextures(1, &cube_tex_id);
+ glActiveTexture(GL_TEXTURE0);
+ gl_load_texture(cube_tex_id, "assets/container.jpg");
+
+ u32 plane_tex_id;
+ glGenTextures(1, &plane_tex_id);
+ glActiveTexture(GL_TEXTURE1);
+ gl_load_texture(plane_tex_id, "assets/smiling.png");
+
+ glUseProgram(shader_program);
+
// directional light things
// - directional light params
@@ -479,15 +601,15 @@ int main(int argc, char* argv[])
Vec3 DL_diffuse = Vec3{ 0.5f, 0.5f, 0.5f };
Vec3 DL_specular = Vec3{ 1.0f, 1.0f, 1.0f };
- int DL_ambient_loc = glGetUniformLocation(shader_program, "dirLight.ambient");
- int DL_diffuse_loc = glGetUniformLocation(shader_program, "dirLight.diffuse");
- int DL_specular_loc = glGetUniformLocation(shader_program, "dirLight.specular");
- int DL_dir_loc = glGetUniformLocation(shader_program, "dirLight.direction");
+ //int DL_ambient_loc = glGetUniformLocation(shader_program, "dirLight.ambient");
+ //int DL_diffuse_loc = glGetUniformLocation(shader_program, "dirLight.diffuse");
+ //int DL_specular_loc = glGetUniformLocation(shader_program, "dirLight.specular");
+ //int DL_dir_loc = glGetUniformLocation(shader_program, "dirLight.direction");
- glUniform3fv(DL_dir_loc, 1, DL_direction.data);
- glUniform3fv(DL_ambient_loc, 1, DL_ambient.data);
- glUniform3fv(DL_diffuse_loc, 1, DL_diffuse.data);
- glUniform3fv(DL_specular_loc, 1, DL_specular.data);
+ //glUniform3fv(DL_dir_loc, 1, DL_direction.data);
+ //glUniform3fv(DL_ambient_loc, 1, DL_ambient.data);
+ //glUniform3fv(DL_diffuse_loc, 1, DL_diffuse.data);
+ //glUniform3fv(DL_specular_loc, 1, DL_specular.data);
// load point light
Vec3 PL_position = Vec3{ 0.0f, 0.0f, 3.0f };
@@ -495,24 +617,24 @@ int main(int argc, char* argv[])
Vec3 PL_diffuse = Vec3{ 0.5f, 0.5f, 0.5f };
Vec3 PL_specular = Vec3{ 1.0f, 1.0f, 1.0f };
- s32 PL_pos_loc = glGetUniformLocation(shader_program, "pointLight.position");
- s32 PL_ambient_loc = glGetUniformLocation(shader_program, "pointLight.ambient");
- s32 PL_diffuse_loc = glGetUniformLocation(shader_program, "pointLight.diffuse");
- s32 PL_specular_loc = glGetUniformLocation(shader_program, "pointLight.specular");
- s32 PL_kc_loc = glGetUniformLocation(shader_program, "pointLight.kC");
- s32 PL_kl_loc = glGetUniformLocation(shader_program, "pointLight.kL");
- s32 PL_kq_loc = glGetUniformLocation(shader_program, "pointLight.kQ");
-
- glUniform3fv(PL_pos_loc, 1, PL_position.data);
- glUniform3fv(PL_ambient_loc, 1, PL_ambient.data);
- glUniform3fv(PL_diffuse_loc, 1, PL_diffuse.data);
- glUniform3fv(PL_specular_loc, 1, PL_specular.data);
- // attenuation factors
- glUniform1f(PL_kc_loc, 1.0f);
- glUniform1f(PL_kl_loc, 0.09f);
- glUniform1f(PL_kq_loc, 0.032f);
-
- int camera_pos_loc = glGetUniformLocation(shader_program, "cameraPosition");
+ //s32 PL_pos_loc = glGetUniformLocation(shader_program, "pointLight.position");
+ //s32 PL_ambient_loc = glGetUniformLocation(shader_program, "pointLight.ambient");
+ //s32 PL_diffuse_loc = glGetUniformLocation(shader_program, "pointLight.diffuse");
+ //s32 PL_specular_loc = glGetUniformLocation(shader_program, "pointLight.specular");
+ //s32 PL_kc_loc = glGetUniformLocation(shader_program, "pointLight.kC");
+ //s32 PL_kl_loc = glGetUniformLocation(shader_program, "pointLight.kL");
+ //s32 PL_kq_loc = glGetUniformLocation(shader_program, "pointLight.kQ");
+
+ //glUniform3fv(PL_pos_loc, 1, PL_position.data);
+ //glUniform3fv(PL_ambient_loc, 1, PL_ambient.data);
+ //glUniform3fv(PL_diffuse_loc, 1, PL_diffuse.data);
+ //glUniform3fv(PL_specular_loc, 1, PL_specular.data);
+ //// attenuation factors
+ //glUniform1f(PL_kc_loc, 1.0f);
+ //glUniform1f(PL_kl_loc, 0.09f);
+ //glUniform1f(PL_kq_loc, 0.032f);
+
+ //int camera_pos_loc = glGetUniformLocation(shader_program, "cameraPosition");
// objects
Vec3 model_translations[] = {
@@ -529,7 +651,7 @@ int main(int argc, char* argv[])
uint32_t model_loc = glGetUniformLocation(shader_program, "Model");
// camera stuff
- Vec3 camera_pos = Vec3{ 0.0, 5.0, 10.0f};
+ Vec3 camera_pos = Vec3{ 0.0, 0.0, 10.0f};
Vec3 preset_up_dir = Vec3{ 0.0, 1.0, 0.0 };
r32 angle_yaw, angle_pitch, angle_roll;
@@ -552,6 +674,7 @@ int main(int argc, char* argv[])
glUniformMatrix4fv(proj_loc, 1, GL_TRUE, proj.buffer);
glEnable(GL_DEPTH_TEST);
+ glDepthFunc(GL_LESS);
u8 game_running = true;
@@ -607,10 +730,10 @@ int main(int argc, char* argv[])
} break;
case (SDL_KEYUP):
{
- if (ev.key.keysym.sym == SDLK_LSHIFT)
- {
- hold_lshift = false;
- }
+ if (ev.key.keysym.sym == SDLK_LSHIFT)
+ {
+ hold_lshift = false;
+ }
if (ev.key.keysym.sym == SDLK_w)
{
move_w = false;
@@ -628,11 +751,11 @@ int main(int argc, char* argv[])
move_d = false;
}
} break;
- case (SDL_MOUSEMOTION):
- {
- SDL_MouseMotionEvent mouse_event = ev.motion;
- r32 x_motion = (r32)mouse_event.xrel;
- r32 y_motion = (r32)mouse_event.yrel;
+ case (SDL_MOUSEMOTION):
+ {
+ SDL_MouseMotionEvent mouse_event = ev.motion;
+ r32 x_motion = (r32)mouse_event.xrel;
+ r32 y_motion = (r32)mouse_event.yrel;
if (x_motion != 0.0 || y_motion != 0.0)
{
angle_yaw = angle_yaw + To_Radian(x_motion * 0.1f);
@@ -640,7 +763,7 @@ int main(int argc, char* argv[])
camera_look = camera_look_around(angle_pitch, angle_yaw);
}
- } break;
+ } break;
default:
{
break;
@@ -675,7 +798,7 @@ int main(int argc, char* argv[])
glUseProgram(shader_program);
glUniformMatrix4fv(view_loc, 1, GL_TRUE, view.buffer);
- glUniform3fv(camera_pos_loc, 1, camera_pos.data);
+ //glUniform3fv(camera_pos_loc, 1, camera_pos.data);
time_prev = time_curr;
@@ -684,15 +807,37 @@ int main(int argc, char* argv[])
//glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
- for (int i = 0; i < 1; i++)
- {
- Vec3 translation_iter = model_translations[i];
- Mat4 model = init_value4m(1.0);
- Mat4 model_translation = translation_matrix4m(translation_iter.x, translation_iter.y, translation_iter.z);
- model = multiply4m(model_translation, model);
- glUniformMatrix4fv(model_loc, 1, GL_TRUE, model.buffer);
- test_model.draw(shader_program);
- }
+ {
+ s32 tex_id_loc = glGetUniformLocation(shader_program, "TexId");
+ glUniform1i(tex_id_loc, 0);
+ Vec3 translation_iter = model_translations[0];
+ Mat4 model = init_value4m(1.0);
+ Mat4 model_translation = translation_matrix4m(translation_iter.x, translation_iter.y, translation_iter.z);
+ model = multiply4m(model_translation, model);
+ glUniformMatrix4fv(model_loc, 1, GL_TRUE, model.buffer);
+ glBindVertexArray(cube_vao);
+ glDrawArrays(GL_TRIANGLES, 0, 36);
+ }
+ {
+ s32 tex_id_loc = glGetUniformLocation(shader_program, "TexId");
+ glUniform1i(tex_id_loc, 1);
+ Vec3 translation_iter = model_translations[1];
+ Mat4 model = init_value4m(1.0);
+ Mat4 model_translation = translation_matrix4m(translation_iter.x, translation_iter.y, translation_iter.z);
+ model = multiply4m(model_translation, model);
+ glUniformMatrix4fv(model_loc, 1, GL_TRUE, model.buffer);
+ glBindVertexArray(plane_vao);
+ glDrawArrays(GL_TRIANGLES, 0, 6);
+ }
+
+ //for (int i = 0; i < 2; i++)
+ //{
+ // Vec3 translation_iter = model_translations[i];
+ // Mat4 model = init_value4m(1.0);
+ // Mat4 model_translation = translation_matrix4m(translation_iter.x, translation_iter.y, translation_iter.z);
+ // model = multiply4m(model_translation, model);
+ // glUniformMatrix4fv(model_loc, 1, GL_TRUE, model.buffer);
+ //}
SDL_GL_SwapWindow(window);
}
diff --git a/source/shaders/depth_test.fs.glsl b/source/shaders/depth_test.fs.glsl
new file mode 100644
index 0000000..796d849
--- /dev/null
+++ b/source/shaders/depth_test.fs.glsl
@@ -0,0 +1,30 @@
+#version 330 core
+
+
+in vec2 TexCoords;
+in vec3 VertexWorldPos;
+uniform sampler2D TexId;
+out vec4 FragColor;
+
+uniform float near = 0.1f;
+uniform float far = 100.0f;
+
+/* @note
+float linear_fragment_depth = MakeDepthLinear(non_linear_fragment_depth);
+float scaled_lfd = linear_fragment_depth/far;
+
+gives us the z value in eye space.
+This is purely for learning purposes.
+The equation used in MakeDepthLinear is derived from the PerspectiveProjectionMatrix.
+Take a look at the equation for that in the codebase
+or here: https://www.songho.ca/opengl/gl_projectionmatrix.html
+*/
+float MakeDepthLinear(float depth) {
+ float ndc = 2.0f*depth - 1;
+ float linear_depth = (2.0 * far * near)/(far + near - ndc*(far - near));
+ return linear_depth;
+}
+
+void main() {
+ FragColor = texture(TexId, TexCoords);
+}
diff --git a/source/shaders/model/model.vs.glsl b/source/shaders/depth_test.vs.glsl
index da394cf..b3b81cc 100644
--- a/source/shaders/model/model.vs.glsl
+++ b/source/shaders/depth_test.vs.glsl
@@ -1,7 +1,6 @@
#version 330 core
layout(location=0) in vec3 aPos;
-layout(location=1) in vec3 aNormal;
-layout(location=2) in vec2 aTex;
+layout(location=1) in vec2 aTex;
uniform mat4 Model;
uniform mat4 View;
@@ -9,17 +8,12 @@ uniform mat4 Projection;
out vec2 TexCoords;
out vec3 VertexWorldPos;
-out vec3 FragNormal;
// @note: I still do not fully understand how the FragNormal calculation works. Need to make sure I intuitively
// get that
void main() {
gl_Position = Projection*View*Model*vec4(aPos, 1.0);
-
VertexWorldPos = vec3(Model * vec4(aPos, 1.0));
- FragNormal = mat3(transpose(inverse(Model))) * aNormal;
- FragNormal = normalize(FragNormal);
TexCoords = aTex;
};
-
diff --git a/source/shaders/model/model.fs.glsl b/source/shaders/model/model.fs.glsl
deleted file mode 100644
index 87da0b6..0000000
--- a/source/shaders/model/model.fs.glsl
+++ /dev/null
@@ -1,152 +0,0 @@
-#version 330 core
-
-#define MAX_TEXTURES 32
-struct Material {
- sampler2D diffuse[MAX_TEXTURES];
- sampler2D specular[MAX_TEXTURES];
- float shininess;
-};
-
-struct DirectionalLight {
- vec3 direction;
-
- vec3 ambient;
- vec3 diffuse;
- vec3 specular;
-};
-
-struct PointLight {
- vec3 position;
-
- vec3 ambient;
- vec3 diffuse;
- vec3 specular;
-
- // attentuation factors
- float kC;
- float kL;
- float kQ;
-};
-
-struct SpotLight {
- vec3 position;
-
- vec3 ambient;
- vec3 diffuse;
- vec3 specular;
-
- // attenuation factors
- float kC;
- float kL;
- float kQ;
-
- // vector for the direction directly in front of the spotlight
- vec3 front;
-
- // spot radius
- float radius_inner;
- float radius_outer; // to smooth out the light
-
-};
-
-// this is the result of a light creation. This contains the multipliers for each kind of a light we want
-// to have.
-struct LightFactor {
- vec3 ambient;
- vec3 diffuse;
- vec3 specular;
-};
-
-in vec2 TexCoords;
-in vec3 FragNormal;
-in vec3 VertexWorldPos;
-uniform Material material;
-uniform PointLight pointLight;
-uniform DirectionalLight dirLight;
-uniform vec3 cameraPosition;
-
-out vec4 FragColor;
-
-LightFactor make_directional_light(DirectionalLight light, vec3 CONST_viewDir) {
- LightFactor res;
-
- vec3 DL_lightDir = normalize(-light.direction);
- res.ambient = light.ambient;
-
- float DL_diffuseStrength = max(dot(DL_lightDir, FragNormal), 0.0);
- res.diffuse = light.diffuse * DL_diffuseStrength;
-
- vec3 DL_reflectDir = reflect(-DL_lightDir, FragNormal);
- float DL_specularity = max(dot(CONST_viewDir, DL_reflectDir), 0.0);
- float DL_shinePower = pow(DL_specularity, material.shininess);
- res.specular = light.specular * DL_shinePower;
-
- return res;
-};
-
-LightFactor make_point_light(PointLight light, vec3 CONST_viewDir) {
- LightFactor res;
-
- float PL_lightDistance = length(light.position - VertexWorldPos);
- float PL_attenuationFactor = 1.0 /
- (light.kC + (light.kL * PL_lightDistance) + (light.kQ * PL_lightDistance * PL_lightDistance));
- res.ambient = PL_attenuationFactor * light.ambient;
-
- vec3 PL_lightDir = normalize(light.position - VertexWorldPos);
- float PL_diffuseStrength = max(dot(PL_lightDir, FragNormal), 0.0);
- res.diffuse = PL_attenuationFactor * light.diffuse * PL_diffuseStrength;
-
- vec3 PL_reflectDir = reflect(-PL_lightDir, FragNormal);
- float PL_specularity = max(dot(CONST_viewDir, PL_reflectDir), 0.0);
- float PL_shinePower = pow(PL_specularity, material.shininess);
- res.specular = PL_attenuationFactor * PL_shinePower * light.specular;
-
- return res;
-}
-
-LightFactor make_spot_light(SpotLight light, vec3 CONST_viewDir) {
- LightFactor res;
-
- float SL_lightDistance = length(light.position - VertexWorldPos);
- float SL_attenuationFactor = 1.0 /
- (light.kC + (light.kL * SL_lightDistance) + (light.kQ * SL_lightDistance * SL_lightDistance));
- vec3 SL_lightDir = normalize(light.position - VertexWorldPos);
-
- res.ambient = SL_attenuationFactor * light.ambient;
-
- float SL_diffAmount = dot(SL_lightDir, normalize(-light.front));
- float SL_spotLightFadeFactor = clamp((SL_diffAmount - light.radius_outer)/(light.radius_inner - light.radius_outer), 0.0f, 1.0f);
- float SL_diffuseStrength = max(dot(SL_lightDir, FragNormal), 0.0);
- res.diffuse = SL_spotLightFadeFactor * SL_attenuationFactor * light.diffuse * SL_diffuseStrength;
-
- vec3 SL_reflectDir = reflect(-SL_lightDir, FragNormal);
- float SL_specularity = max(dot(CONST_viewDir, SL_reflectDir), 0.0);
- float SL_shinePower = pow(SL_specularity, material.shininess);
- res.specular = SL_spotLightFadeFactor * SL_attenuationFactor * SL_shinePower * light.specular;
-
- return res;
-}
-
-void main() {
- vec3 CONST_viewDir = normalize(cameraPosition - VertexWorldPos);
- vec3 combinedAmbience = vec3(0.0);
- vec3 combinedDiffuse = vec3(0.0);
- vec3 combinedSpecular = vec3(0.0);
-
- LightFactor DL_factors = make_directional_light(dirLight, CONST_viewDir);
- combinedAmbience += DL_factors.ambient;
- combinedDiffuse += DL_factors.diffuse;
- combinedSpecular += DL_factors.specular;
-
- //LightFactor PL_factors = make_point_light(pointLight, CONST_viewDir);
- //combinedAmbience += PL_factors.ambient;
- //combinedDiffuse += PL_factors.diffuse;
- //combinedSpecular += PL_factors.specular;
-
- vec3 ambientLight = combinedAmbience * vec3(texture(material.diffuse[0], TexCoords));
- vec3 diffuseLight = combinedDiffuse * vec3(texture(material.diffuse[0], TexCoords));
- vec3 specularLight = combinedSpecular * vec3(texture(material.specular[0], TexCoords));
-
- vec3 color = ambientLight + diffuseLight + specularLight;
- FragColor = vec4(color, 1.0);
-};
generated by cgit v1.2.3 (git 2.25.1) at 2025-01-23 13:30:32 +0000