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add: added spotlight light shader

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This commit is contained in:
Lukian 2025-07-15 17:08:00 +02:00
parent 8f1bf32a1e
commit ee9e540b5b
2 changed files with 99 additions and 6 deletions
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41
main.cpp
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@ -88,6 +88,7 @@ int main()
Shader ourShader("resources/shaders/vert.glsl", "resources/shaders/frag.glsl");
Shader directional_lightShader("resources/shaders/vert.glsl", "resources/shaders/directional_light.glsl");
Shader point_lightShader("resources/shaders/vert.glsl", "resources/shaders/point_light.glsl");
Shader spotlight_lightShader("resources/shaders/vert.glsl", "resources/shaders/spotlight_light.glsl");
Shader light_cubeShader("resources/shaders/vert.glsl", "resources/shaders/light_object.glsl");
// Models
@ -104,10 +105,15 @@ int main()
static float positionY = 0.0f;
static float positionZ = 0.0f;
static float lightCubePositionX = 1.2f;
static float lightCubePositionY = 1.0f;
static float lightCubePositionZ = 2.0f;
static float lightCubePositionX = 0.0f;
static float lightCubePositionY = 0.0f;
static float lightCubePositionZ = 3.0f;
static float* light_color = new float[3]{1.0f, 1.0f, 1.0f};
static float light_cutoff = 12.5f;
static float light_outerCutoff = 17.5f;
static float light_directionX = 0.0f;
static float light_directionY = 0.0f;
static float light_directionZ = -1.0f;
while(!glfwWindowShouldClose(window))
{
@ -133,6 +139,7 @@ int main()
ImGui::Begin("Settings");
ImGui::Text("FPS: %.2f", 1.0f / deltaTime);
ImGui::Text("Camera Direction: (%.2f, %.2f, %.2f)", camera.Front.x, camera.Front.y, camera.Front.z);
ImGui::SliderFloat("Object 1 Position X", &positionX, -5.0f, 5.0f);
ImGui::SliderFloat("Object 1 Position Y", &positionY, -5.0f, 5.0f);
ImGui::SliderFloat("Object 1 Position Z", &positionZ, -5.0f, 5.0f);
@ -140,6 +147,11 @@ int main()
ImGui::SliderFloat("Light Cube Position Y", &lightCubePositionY, -5.0f, 5.0f);
ImGui::SliderFloat("Light Cube Position Z", &lightCubePositionZ, -5.0f, 5.0f);
ImGui::ColorEdit3("Light Cube Color", light_color);
ImGui::SliderFloat("Light Cutoff", &light_cutoff, 0.0f, 90.0f);
ImGui::SliderFloat("Light Outer Cutoff", &light_outerCutoff, 0.0f, 90.0f);
ImGui::SliderFloat("Light Direction X", &light_directionX, -1.0f, 1.0f);
ImGui::SliderFloat("Light Direction Y", &light_directionY, -1.0f, 1.0f);
ImGui::SliderFloat("Light Direction Z", &light_directionZ, -1.0f, 1.0f);
ImGui::End();
glm::mat4 view = camera.GetViewMatrix();
@ -178,12 +190,29 @@ int main()
point_lightShader.setMat4("view", view);
point_lightShader.setMat4("projection", projection);
// Spotlight light
spotlight_lightShader.use();
spotlight_lightShader.setVec3("viewPos", camera.Position);
spotlight_lightShader.setVec3("light.position", lightCubePositionX, lightCubePositionY, lightCubePositionZ);
spotlight_lightShader.setVec3("light.direction", light_directionX, light_directionY, light_directionZ);
spotlight_lightShader.setVec3("light.color", light_color[0], light_color[1], light_color[2]);
spotlight_lightShader.setVec3("light.ambient", 0.2f, 0.2f, 0.2f);
spotlight_lightShader.setVec3("light.diffuse", 0.5f, 0.5f, 0.5f);
spotlight_lightShader.setVec3("light.specular", 1.0f, 1.0f, 1.0f);
spotlight_lightShader.setFloat("light.constant", 1.0f);
spotlight_lightShader.setFloat("light.linear", 0.09f);
spotlight_lightShader.setFloat("light.quadratic", 0.032f);
spotlight_lightShader.setFloat("light.cutOff", glm::cos(glm::radians(light_cutoff)));
spotlight_lightShader.setFloat("light.outerCutOff", glm::cos(glm::radians(light_outerCutoff)));
spotlight_lightShader.setMat4("view", view);
spotlight_lightShader.setMat4("projection", projection);
object1.setPosition(glm::vec3(positionX, positionY, positionZ));
object1.Draw(point_lightShader, deltaTime);
object1.Draw(spotlight_lightShader, deltaTime);
object2.setAcceleration(glm::vec3(0.0f, 0.001f, 0.0f));
object2.Draw(point_lightShader, deltaTime);
object2.Draw(spotlight_lightShader, deltaTime);
object3.setAcceleration(glm::vec3(0.0f, -0.001f, 0.0f));
object3.Draw(point_lightShader, deltaTime);
object3.Draw(spotlight_lightShader, deltaTime);
// Light cube shader
light_cubeShader.use();