s473561/Grafika_Komputerowa_Interstellar_Odyssey
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PBR from textures

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This commit is contained in:
Nikodem145 2024-01-28 00:44:00 +01:00
parent 7b5cede4b0
commit 0c8f79ae0f
2 changed files with 38 additions and 20 deletions
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9
cw 7/shaders/shader_5_tex.frag
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@ -1,8 +1,8 @@
#version 430 core #version 430 core
float AMBIENT = 0.6; float AMBIENT = 0.6;
float roughness = 0.2; float roughness;
float metalic = 0.8; float metalic;
uniform vec3 color; uniform vec3 color;
@ -30,6 +30,9 @@ void main()
float metalnessValue = texture2D(metalnessTexture, vecTex).r; float metalnessValue = texture2D(metalnessTexture, vecTex).r;
float roughnessValue = texture2D(roughnessTexture, vecTex).r; float roughnessValue = texture2D(roughnessTexture, vecTex).r;
roughness =roughnessValue;
metalic = metalnessValue;
vec3 N = texture2D(normalSampler, vecTex).xyz; vec3 N = texture2D(normalSampler, vecTex).xyz;
N = 2.0 * N - 1.0; N = 2.0 * N - 1.0;
N = normalize(N); N = normalize(N);
@ -45,7 +48,7 @@ void main()
float D = (roughness * roughness) / (3.14159 * pow(pow(NdotH * NdotH,2.0) * (roughness * roughness - 1.0) + 1.0, 2.0)); float D = (roughness * roughness) / (3.14159 * pow(pow(NdotH * NdotH,2.0) * (roughness * roughness - 1.0) + 1.0, 2.0));
float ggx1 = NdotV / (NdotV * (1.0 - k) + k); float ggx1 = NdotV / (NdotV * (1.0 - k) + k);
float ggx2 = NdotL / (NdotL * (1.0 - k) + k); float ggx2 = NdotL / (NdotL * (1.0 - k) + k);
vec3 F0 = vec3(0.04); vec3 F0 = mix(vec3(0.04), vec3(1.0), metalic);
float G = ggx1 * ggx2; float G = ggx1 * ggx2;
vec3 F = F0 + (1.0-F0)*pow(1-dot(V,H),5.0); vec3 F = F0 + (1.0-F0)*pow(1-dot(V,H),5.0);

49
cw 7/src/ex_7_1.hpp
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@ -40,6 +40,9 @@ namespace texture {
GLuint moonNormal; GLuint moonNormal;
GLuint shipNormal; GLuint shipNormal;
GLuint rustNormal; GLuint rustNormal;
GLuint metalnessSphere;
GLuint roughnessSphere;
} }
@ -140,18 +143,28 @@ void drawObjectColor(Core::RenderContext& context, glm::mat4 modelMatrix, glm::v
} }
void drawObjectTexture(Core::RenderContext& context, glm::mat4 modelMatrix, GLuint textureID, GLuint normalMapId) { void drawObjectTexture(Core::RenderContext& context, glm::mat4 modelMatrix, GLuint textureID, GLuint normalMapId, GLuint metalnessTexture, GLuint roughnessTexture) {
glUseProgram(programTex); glUseProgram(programTex);
glm::mat4 viewProjectionMatrix = createPerspectiveMatrix() * createCameraMatrix(); glm::mat4 viewProjectionMatrix = createPerspectiveMatrix() * createCameraMatrix();
glm::mat4 transformation = viewProjectionMatrix * modelMatrix; glm::mat4 transformation = viewProjectionMatrix * modelMatrix;
glUniformMatrix4fv(glGetUniformLocation(programTex, "transformation"), 1, GL_FALSE, (float*)&transformation); glUniformMatrix4fv(glGetUniformLocation(programTex, "transformation"), 1, GL_FALSE, (float*)&transformation);
glUniformMatrix4fv(glGetUniformLocation(programTex, "modelMatrix"), 1, GL_FALSE, (float*)&modelMatrix); glUniformMatrix4fv(glGetUniformLocation(programTex, "modelMatrix"), 1, GL_FALSE, (float*)&modelMatrix);
glUniform3f(glGetUniformLocation(programTex, "lightPos"), 0, 0, 0); glUniform3f(glGetUniformLocation(programTex, "lightPos"), 0, 0, 0);
Core::SetActiveTexture(normalMapId, "normalSampler", programTex, 1); Core::SetActiveTexture(normalMapId, "normalSampler", programTex, 1);
Core::SetActiveTexture(textureID, "colorTexture", programTex, 0); Core::SetActiveTexture(textureID, "colorTexture", programTex, 0);
glUniform1i(glGetUniformLocation(programTex, "metalnessTexture"), 2);
glUniform1i(glGetUniformLocation(programTex, "roughnessTexture"), 3);
// Bind metalness and roughness textures to texture units
glActiveTexture(GL_TEXTURE2);
glBindTexture(GL_TEXTURE_2D, metalnessTexture);
glActiveTexture(GL_TEXTURE3);
glBindTexture(GL_TEXTURE_2D, roughnessTexture);
glUniform3f(glGetUniformLocation(programTex, "cameraPos"), cameraPos.x, cameraPos.y, cameraPos.z); glUniform3f(glGetUniformLocation(programTex, "cameraPos"), cameraPos.x, cameraPos.y, cameraPos.z);
Core::DrawContext(context); Core::DrawContext(context);
@ -174,7 +187,7 @@ void drawObjectSkyBox(Core::RenderContext& context, glm::mat4 modelMatrix) {
void generateAsteroids(glm::vec3 asteroid_Pos, glm::vec3 distance, double step) { void generateAsteroids(glm::vec3 asteroid_Pos, glm::vec3 distance, double step) {
glm::vec3 normalizedDir = glm::normalize(distance); glm::vec3 normalizedDir = glm::normalize(distance);
asteroid_Pos = asteroid_Pos - normalizedDir *step; asteroid_Pos = asteroid_Pos - normalizedDir *step;
drawObjectTexture(sphereContext, glm::translate(asteroid_Pos) * glm::scale(glm::vec3(0.1f)), texture::moon, texture::moonNormal); drawObjectTexture(sphereContext, glm::translate(asteroid_Pos) * glm::scale(glm::vec3(0.1f)), texture::moon, texture::moonNormal, texture::metalnessSphere, texture::roughnessSphere);
} }
@ -189,7 +202,7 @@ void generatePlanetoidBelt() {
float time = glfwGetTime(); float time = glfwGetTime();
drawObjectTexture(sphereContext,glm::eulerAngleY(time / 5) * glm::translate(glm::vec3(x, y, z)) * glm::scale(glm::vec3(pScale)), texture::moon, texture::moonNormal); drawObjectTexture(sphereContext,glm::eulerAngleY(time / 5) * glm::translate(glm::vec3(x, y, z)) * glm::scale(glm::vec3(pScale)), texture::moon, texture::moonNormal, texture::metalnessSphere, texture::roughnessSphere);
} }
} }
@ -219,19 +232,19 @@ void renderScene(GLFWwindow* window)
drawObjectSkyBox(cubeContext, glm::translate(cameraPos)); drawObjectSkyBox(cubeContext, glm::translate(cameraPos));
drawObjectTexture(sphereContext, glm::scale(glm::mat4(), glm::vec3(2.0f, 2.0f, 2.0f)), texture::sun, texture::rustNormal); drawObjectTexture(sphereContext, glm::scale(glm::mat4(), glm::vec3(2.0f, 2.0f, 2.0f)), texture::sun, texture::rustNormal, texture::metalnessSphere, texture::roughnessSphere);
drawObjectTexture(sphereContext, glm::eulerAngleY(time / 3) * glm::translate(glm::vec3(8.f, 0, 0)) * glm::eulerAngleY(time) * glm::scale(glm::vec3(0.3f)), texture::earth, texture::earthNormal); drawObjectTexture(sphereContext, glm::eulerAngleY(time / 3) * glm::translate(glm::vec3(8.f, 0, 0)) * glm::eulerAngleY(time) * glm::scale(glm::vec3(0.3f)), texture::earth, texture::earthNormal, texture::metalnessSphere, texture::roughnessSphere);
drawObjectTexture(sphereContext, drawObjectTexture(sphereContext,
glm::eulerAngleY(time / 3) * glm::translate(glm::vec3(8.f, 0, 0)) * glm::eulerAngleY(time) * glm::translate(glm::vec3(1.f, 0, 0)) * glm::scale(glm::vec3(0.1f)), texture::moon, texture::moonNormal); glm::eulerAngleY(time / 3) * glm::translate(glm::vec3(8.f, 0, 0)) * glm::eulerAngleY(time) * glm::translate(glm::vec3(1.f, 0, 0)) * glm::scale(glm::vec3(0.1f)), texture::moon, texture::moonNormal, texture::metalnessSphere, texture::roughnessSphere);
drawObjectTexture(sphereContext, glm::eulerAngleY(time) * glm::translate(glm::vec3(4.f, 0, 0)) * glm::eulerAngleY(time) * glm::scale(glm::vec3(0.15f)), texture::mercury, texture::rustNormal); drawObjectTexture(sphereContext, glm::eulerAngleY(time) * glm::translate(glm::vec3(4.f, 0, 0)) * glm::eulerAngleY(time) * glm::scale(glm::vec3(0.15f)), texture::mercury, texture::rustNormal, texture::metalnessSphere, texture::roughnessSphere);
drawObjectTexture(sphereContext, glm::eulerAngleY(time / 4) * glm::translate(glm::vec3(10.f, 0, 0)) * glm::eulerAngleY(time) * glm::scale(glm::vec3(0.2f)), texture::mars, texture::rustNormal); drawObjectTexture(sphereContext, glm::eulerAngleY(time / 4) * glm::translate(glm::vec3(10.f, 0, 0)) * glm::eulerAngleY(time) * glm::scale(glm::vec3(0.2f)), texture::mars, texture::rustNormal, texture::metalnessSphere, texture::roughnessSphere);
drawObjectTexture(sphereContext, glm::eulerAngleY(time / 2) * glm::translate(glm::vec3(6.f, 0, 0)) * glm::eulerAngleY(time) * glm::scale(glm::vec3(0.3f)), texture::venus, texture::rustNormal); drawObjectTexture(sphereContext, glm::eulerAngleY(time / 2) * glm::translate(glm::vec3(6.f, 0, 0)) * glm::eulerAngleY(time) * glm::scale(glm::vec3(0.3f)), texture::venus, texture::rustNormal, texture::metalnessSphere, texture::roughnessSphere);
drawObjectTexture(sphereContext, glm::eulerAngleY(time / 50000) * glm::translate(glm::vec3(14.f, 0, 0)) * glm::eulerAngleY(time/500000) * glm::scale(glm::vec3(0.9f)), texture::jupiter, texture::rustNormal); drawObjectTexture(sphereContext, glm::eulerAngleY(time / 50000) * glm::translate(glm::vec3(14.f, 0, 0)) * glm::eulerAngleY(time/500000) * glm::scale(glm::vec3(0.9f)), texture::jupiter, texture::rustNormal, texture::metalnessSphere, texture::roughnessSphere);
drawObjectTexture(sphereContext, glm::eulerAngleY(time / 6) * glm::translate(glm::vec3(17.f, 0, 0)) * glm::eulerAngleY(time) * glm::scale(glm::vec3(0.9f)), texture::saturn, texture::rustNormal); drawObjectTexture(sphereContext, glm::eulerAngleY(time / 6) * glm::translate(glm::vec3(17.f, 0, 0)) * glm::eulerAngleY(time) * glm::scale(glm::vec3(0.9f)), texture::saturn, texture::rustNormal, texture::metalnessSphere, texture::roughnessSphere);
drawObjectTexture(sphereContext, glm::eulerAngleY(time / 7) * glm::translate(glm::vec3(20.f, 0, 0)) * glm::eulerAngleY(time) * glm::scale(glm::vec3(0.6f)), texture::uranus, texture::rustNormal); drawObjectTexture(sphereContext, glm::eulerAngleY(time / 7) * glm::translate(glm::vec3(20.f, 0, 0)) * glm::eulerAngleY(time) * glm::scale(glm::vec3(0.6f)), texture::uranus, texture::rustNormal, texture::metalnessSphere, texture::roughnessSphere);
drawObjectTexture(sphereContext, glm::eulerAngleY(time / 8) * glm::translate(glm::vec3(23.f, 0, 0)) * glm::eulerAngleY(time) * glm::scale(glm::vec3(0.6f)), texture::neptune, texture::rustNormal); drawObjectTexture(sphereContext, glm::eulerAngleY(time / 8) * glm::translate(glm::vec3(23.f, 0, 0)) * glm::eulerAngleY(time) * glm::scale(glm::vec3(0.6f)), texture::neptune, texture::rustNormal, texture::metalnessSphere, texture::roughnessSphere);
spaceshipSide = glm::normalize(glm::cross(spaceshipDir, glm::vec3(0.f, 1.f, 0.f))); spaceshipSide = glm::normalize(glm::cross(spaceshipDir, glm::vec3(0.f, 1.f, 0.f)));
@ -247,8 +260,7 @@ void renderScene(GLFWwindow* window)
drawObjectTexture(shipContext, drawObjectTexture(shipContext,
glm::translate(spaceshipPos) * specshipCameraRotrationMatrix * glm::eulerAngleY(glm::pi<float>()) * glm::rotate(glm::mat4(), tiltAngle * glm::radians(30.0f), glm::vec3(0, 0, 1)) * glm::scale(glm::vec3(0.1f)), glm::translate(spaceshipPos) * specshipCameraRotrationMatrix * glm::eulerAngleY(glm::pi<float>()) * glm::rotate(glm::mat4(), tiltAngle * glm::radians(30.0f), glm::vec3(0, 0, 1)) * glm::scale(glm::vec3(0.1f)),
texture::ship, texture::shipNormal texture::ship, texture::shipNormal, texture::metalnessSphere, texture::roughnessSphere);
);
//drawObjectTexture(shipContext, //drawObjectTexture(shipContext,
// glm::translate(spaceshipPos) * specshipCameraRotrationMatrix * glm::eulerAngleY(glm::pi<float>())*glm::scale(glm::vec3(0.1f)), // glm::translate(spaceshipPos) * specshipCameraRotrationMatrix * glm::eulerAngleY(glm::pi<float>())*glm::scale(glm::vec3(0.1f)),
// texture::ship, texture::shipNormal // texture::ship, texture::shipNormal
@ -340,6 +352,9 @@ void init(GLFWwindow* window)
texture::rustNormal = Core::LoadTexture("textures/rust_normal.jpg"); texture::rustNormal = Core::LoadTexture("textures/rust_normal.jpg");
texture::moonNormal = Core::LoadTexture("textures/moon_normal.jpg"); texture::moonNormal = Core::LoadTexture("textures/moon_normal.jpg");
texture::metalnessSphere = Core::LoadTexture("textures/rusty_metal_sheet_diff_2k.jpg");
texture::roughnessSphere = Core::LoadTexture("textures/rough_concrete_diff_1k.jpg");
glGenTextures(1, &textureID); glGenTextures(1, &textureID);