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View Matrix / Camera implemented

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This commit is contained in:
firefighter198
2021-09-13 15:09:57 +02:00
parent d1340520d4
commit 98b2633d6d
7 changed files with 179 additions and 22 deletions
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Rendr/out/production/Rendr/Shaders/vertexShader.glsl
+2 -1
View File
@@ -8,9 +8,10 @@ out vec2 passUvs;
uniform mat4 transformationMatrix;
uniform mat4 projectionMatrix;
uniform mat4 viewMatrix;
void main(void)
{
gl_Position = projectionMatrix * transformationMatrix * vec4(position.x, position.y, position.z, 1.0);
gl_Position = projectionMatrix * viewMatrix * transformationMatrix * vec4(position.x, position.y, position.z, 1.0);
passUvs = uvs;
}
Rendr/src/EngineTest/MainGameLoop.java
+99 -17
View File
@@ -1,15 +1,17 @@
package EngineTest;
import Entity.Entity;
import Entity.*;
import RenderEngine.DisplayManager;
import RenderEngine.Loader;
import Models.RawModel;
import RenderEngine.Renderer;
import Shaders.StaticShader;
import Models.TexturedModel;
import org.lwjgl.input.Keyboard;
import org.lwjgl.opengl.Display;
import Textures.ModelTexture;
import org.lwjgl.util.vector.Vector3f;
import sun.awt.AWTAccessor;
public class MainGameLoop
{
@@ -26,24 +28,83 @@ public class MainGameLoop
StaticShader shader = new StaticShader();
Renderer renderer = new Renderer(shader);
float[] vertices =
{
-.5f, .5f, 0,
-.5f, -.5f, 0,
.5f, -.5f, 0,
.5f, .5f, 0
float[] vertices = {
-0.5f,0.5f,-0.5f,
-0.5f,-0.5f,-0.5f,
0.5f,-0.5f,-0.5f,
0.5f,0.5f,-0.5f,
-0.5f,0.5f,0.5f,
-0.5f,-0.5f,0.5f,
0.5f,-0.5f,0.5f,
0.5f,0.5f,0.5f,
0.5f,0.5f,-0.5f,
0.5f,-0.5f,-0.5f,
0.5f,-0.5f,0.5f,
0.5f,0.5f,0.5f,
-0.5f,0.5f,-0.5f,
-0.5f,-0.5f,-0.5f,
-0.5f,-0.5f,0.5f,
-0.5f,0.5f,0.5f,
-0.5f,0.5f,0.5f,
-0.5f,0.5f,-0.5f,
0.5f,0.5f,-0.5f,
0.5f,0.5f,0.5f,
-0.5f,-0.5f,0.5f,
-0.5f,-0.5f,-0.5f,
0.5f,-0.5f,-0.5f,
0.5f,-0.5f,0.5f
};
int[] indices =
{
0, 1, 3,
3, 1, 2,
float[] uvs = {
0,0,
0,1,
1,1,
1,0,
0,0,
0,1,
1,1,
1,0,
0,0,
0,1,
1,1,
1,0,
0,0,
0,1,
1,1,
1,0,
0,0,
0,1,
1,1,
1,0,
0,0,
0,1,
1,1,
1,0
};
float[] uvs =
{
0, 0,
0, 1,
1, 1,
1, 0
int[] indices = {
0,1,3,
3,1,2,
4,5,7,
7,5,6,
8,9,11,
11,9,10,
12,13,15,
15,13,14,
16,17,19,
19,17,18,
20,21,23,
23,21,22
};
RawModel model = loader.loadToVAO(vertices, indices, uvs);
@@ -51,10 +112,31 @@ public class MainGameLoop
TexturedModel texturedModel = new TexturedModel(model, texture);
Entity entity = new Entity(texturedModel, new Vector3f(0, 0, -5), 0, 0, 0, 1);
Camera camera = new Camera();
while(!Display.isCloseRequested())
{
if(Keyboard.isKeyDown(Keyboard.KEY_W))
{
camera.translate(0, 0, -.02f);
}
if(Keyboard.isKeyDown(Keyboard.KEY_S))
{
camera.translate(0, 0, .02f);
}
if(Keyboard.isKeyDown(Keyboard.KEY_D))
{
camera.translate(.02f, 0, 0);
}
if(Keyboard.isKeyDown(Keyboard.KEY_A))
{
camera.translate(-.02f, 0, 0);
}
entity.rotate(.5f, .5f, .5f);
renderer.prepare(0, 0, 0);
shader.start();
shader.loadViewMatrix(camera);
renderer.render(entity, shader);
shader.stop();
DisplayManager.updateDisplay();
Rendr/src/Entity/Camera.java
+48
View File
@@ -0,0 +1,48 @@
package Entity;
import org.lwjgl.util.vector.Vector3f;
public class Camera
{
private Vector3f position = new Vector3f(0, 0, 0);
private float rotX, rotY, rotZ;
public Camera()
{
}
public void translate(Vector3f value)
{
position.x += value.x;
position.y += value.y;
position.z += value.z;
}
public void translate(float x, float y, float z)
{
position.x += x;
position.y += y;
position.z += z;
}
public Vector3f getPosition()
{
return position;
}
public float getRotX()
{
return rotX;
}
public float getRotY()
{
return rotY;
}
public float getRotZ()
{
return rotZ;
}
}
Rendr/src/RenderEngine/Renderer.java
+2
View File
@@ -26,8 +26,10 @@ public class Renderer
public void prepare(float r, float g, float b)
{
GL11.glEnable(GL11.GL_DEPTH_TEST);
GL11.glClearColor(r, g, b, 1);
GL11.glClear(GL11.GL_COLOR_BUFFER_BIT);
GL11.glClear(GL11.GL_DEPTH_BUFFER_BIT);
}
public void render(Entity entity, StaticShader shader)
Rendr/src/Shaders/StaticShader.java
+10
View File
@@ -1,5 +1,7 @@
package Shaders;
import Entity.Camera;
import Tools.Maths;
import org.lwjgl.util.vector.Matrix4f;
public class StaticShader extends ShaderProgram
@@ -7,6 +9,7 @@ public class StaticShader extends ShaderProgram
private static final String vertexFile = "src/shaders/vertexShader.glsl", fragmentFile = "src/shaders/fragmentShader.glsl";
private int locationTransform;
private int locationProjection;
private int locationView;
public StaticShader()
{
@@ -18,6 +21,7 @@ public class StaticShader extends ShaderProgram
{
locationTransform = getUniformLocation("transformationMatrix");
locationProjection = getUniformLocation("projectionMatrix");
locationView = getUniformLocation("viewMatrix");
}
@Override
@@ -32,6 +36,12 @@ public class StaticShader extends ShaderProgram
loadMatrix(locationTransform, matrix);
}
public void loadViewMatrix(Camera camera)
{
Matrix4f matrix = Maths.createViewMatrix(camera);
loadMatrix(locationView, matrix);
}
public void loadProjectionMatrix(Matrix4f matrix)
{
loadMatrix(locationProjection, matrix);
Rendr/src/Shaders/vertexShader.glsl
+2 -1
View File
@@ -8,9 +8,10 @@ out vec2 passUvs;
uniform mat4 transformationMatrix;
uniform mat4 projectionMatrix;
uniform mat4 viewMatrix;
void main(void)
{
gl_Position = projectionMatrix * transformationMatrix * vec4(position.x, position.y, position.z, 1.0);
gl_Position = projectionMatrix * viewMatrix * transformationMatrix * vec4(position.x, position.y, position.z, 1.0);
passUvs = uvs;
}
Rendr/src/Tools/Maths.java
+13
View File
@@ -1,5 +1,6 @@
package Tools;
import Entity.Camera;
import org.lwjgl.util.vector.Matrix4f;
import org.lwjgl.util.vector.Vector3f;
@@ -16,4 +17,16 @@ public class Maths
Matrix4f.scale(new Vector3f(scale, scale, scale), matrix, matrix);
return matrix;
}
public static Matrix4f createViewMatrix(Camera camera)
{
Matrix4f viewMatrix = new Matrix4f();
viewMatrix.setIdentity();
Matrix4f.rotate((float) Math.toRadians(camera.getRotX()), new Vector3f(1, 0, 0), viewMatrix, viewMatrix);
Matrix4f.rotate((float) Math.toRadians(camera.getRotY()), new Vector3f(0, 1, 0), viewMatrix, viewMatrix);
Vector3f cameraPos = camera.getPosition();
Vector3f negativeCameraPos = new Vector3f(-cameraPos.x, -cameraPos.y, -cameraPos.z);
Matrix4f.translate(negativeCameraPos, viewMatrix, viewMatrix);
return viewMatrix;
}
}