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Update ReflectionHandler.java

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This commit is contained in:
James Seibel
2021-11-13 21:54:05 -06:00
parent 34c2049445
commit 5dab3ac069
1 changed files with 22 additions and 16 deletions
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src/main/java/com/seibel/lod/handlers/ReflectionHandler.java
+22 -16
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@@ -19,14 +19,14 @@
package com.seibel.lod.handlers;
import com.seibel.lod.enums.rendering.FogQuality;
import com.seibel.lod.lodApi.ClientApi;
import com.seibel.lod.wrappers.MinecraftWrapper;
import net.minecraft.util.math.vector.Matrix4f;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import com.seibel.lod.enums.rendering.FogQuality;
import com.seibel.lod.lodApi.ClientApi;
import com.seibel.lod.objects.math.Mat4f;
import com.seibel.lod.wrappers.MinecraftWrapper;
/**
* This object is used to get variables from methods
* where they are private. Specifically the fog setting
@@ -134,26 +134,32 @@ public class ReflectionHandler
/**
* Modifies a projection matrix's clip planes.
* The projection matrix must be in a column-major format.
*
* @param projectionMatrix The projection matrix to be modified.
* @param n the new near clip plane value.
* @param f the new far clip plane value.
* @param nearClipPlane the new near clip plane value.
* @param farClipPlane the new far clip plane value.
* @return The modified matrix.
*/
public Matrix4f Matrix4fModifyClipPlanes(Matrix4f projectionMatrix, float n, float f)
public Mat4f Matrix4fModifyClipPlanes(Mat4f projectionMatrix, float nearClipPlane, float farClipPlane)
{
//find the matrix values.
float nMatrixValue = -((f + n) / (f - n));
float fMatrixValue = -((2 * f * n) / (f - n));
// find the matrix values.
float nearMatrixValue = -((farClipPlane + nearClipPlane) / (farClipPlane - nearClipPlane));
float farMatrixValue = -((2 * farClipPlane * nearClipPlane) / (farClipPlane - nearClipPlane));
try
{
//get the fields of the projectionMatrix
// TODO this was originally created before we had the Mat4f object,
// so this doesn't need to be done with reflection anymore.
// And should be moved to the LodRenderer
// get the fields of the projectionMatrix
Field[] fields = projectionMatrix.getClass().getDeclaredFields();
//bypass the security protections on the fields that encode near and far plane values.
// bypass the security protections on the fields that encode near and far plane values.
fields[10].setAccessible(true);
fields[11].setAccessible(true);
//Change the values of the near and far plane.
fields[10].set(projectionMatrix, nMatrixValue);
fields[11].set(projectionMatrix, fMatrixValue);
// Change the values of the near and far plane.
fields[10].set(projectionMatrix, nearMatrixValue);
fields[11].set(projectionMatrix, farMatrixValue);
}
catch (Exception e)
{