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towards getting opengl to work

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benfry
2004-12-11 23:36:38 +00:00
parent f6755cebaa
commit 8fac02179d
5 changed files with 82 additions and 48 deletions
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73
processing/core/PGraphics.java
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@@ -203,8 +203,8 @@ public class PGraphics extends PImage implements PMethods, PConstants {
// perspective setup
public float cameraFOV;
public float cameraEyeX, cameraEyeY;
public float cameraEyeDist, cameraNearDist, cameraFarDist;
public float cameraX, cameraY, cameraZ;
public float cameraNear, cameraFar;
public float cameraAspect;
public float p00, p01, p02, p03; // projection matrix
@@ -332,11 +332,11 @@ public class PGraphics extends PImage implements PMethods, PConstants {
// introduced new vars for more flexible code
static final float sinLUT[], cosLUT[];
static final float SINCOS_PRECISION = 0.5f;
static final int SINCOS_LENGTH=(int)(360f/SINCOS_PRECISION);
static final int SINCOS_LENGTH = (int) (360f / SINCOS_PRECISION);
static {
sinLUT = new float[SINCOS_LENGTH];
cosLUT = new float[SINCOS_LENGTH];
for (int i=0; i<SINCOS_LENGTH; i++) {
for (int i = 0; i < SINCOS_LENGTH; i++) {
sinLUT[i] = (float) Math.sin(i * DEG_TO_RAD * SINCOS_PRECISION);
cosLUT[i] = (float) Math.cos(i * DEG_TO_RAD * SINCOS_PRECISION);
}
@@ -419,13 +419,28 @@ public class PGraphics extends PImage implements PMethods, PConstants {
// init perspective projection based on new dimensions
cameraFOV = 60; // at least for now
cameraEyeX = width / 2.0f;
cameraEyeY = height / 2.0f;
cameraEyeDist = cameraEyeY / ((float) tan(PI * cameraFOV / 360f));
cameraNearDist = cameraEyeDist / 10.0f;
cameraFarDist = cameraEyeDist * 10.0f;
cameraX = width / 2.0f;
cameraY = height / 2.0f;
cameraZ = cameraY / ((float) tan(PI * cameraFOV / 360f));
cameraNear = cameraZ / 10.0f;
cameraFar = cameraZ * 10.0f;
cameraAspect = (float)width / (float)height;
// init lights (here instead of allocate b/c needed by opengl)
light = new boolean[MAX_LIGHTS];
lightX = new float[MAX_LIGHTS];
lightY = new float[MAX_LIGHTS];
lightZ = new float[MAX_LIGHTS];
lightAmbientR = new float[MAX_LIGHTS];
lightAmbientG = new float[MAX_LIGHTS];
lightAmbientB = new float[MAX_LIGHTS];
lightDiffuseR = new float[MAX_LIGHTS];
lightDiffuseG = new float[MAX_LIGHTS];
lightDiffuseB = new float[MAX_LIGHTS];
lightSpecularR = new float[MAX_LIGHTS];
lightSpecularG = new float[MAX_LIGHTS];
lightSpecularB = new float[MAX_LIGHTS];
// reset the cameraMode if PERSPECTIVE or ORTHOGRAPHIC
// otherwise just hose the user if it's custom
if (depth) cameraMode(this.cameraMode);
@@ -454,21 +469,6 @@ public class PGraphics extends PImage implements PMethods, PConstants {
line = new PLine(this);
triangle = new PTriangle(this);
// init lights
light = new boolean[MAX_LIGHTS];
lightX = new float[MAX_LIGHTS];
lightY = new float[MAX_LIGHTS];
lightZ = new float[MAX_LIGHTS];
lightAmbientR = new float[MAX_LIGHTS];
lightAmbientG = new float[MAX_LIGHTS];
lightAmbientB = new float[MAX_LIGHTS];
lightDiffuseR = new float[MAX_LIGHTS];
lightDiffuseG = new float[MAX_LIGHTS];
lightDiffuseB = new float[MAX_LIGHTS];
lightSpecularR = new float[MAX_LIGHTS];
lightSpecularG = new float[MAX_LIGHTS];
lightSpecularB = new float[MAX_LIGHTS];
}
@@ -497,7 +497,7 @@ public class PGraphics extends PImage implements PMethods, PConstants {
lightEnable(0);
lightAmbient(0, 0, 0, 0);
light(1, cameraEyeX, cameraEyeY, cameraEyeDist, 255, 255, 255);
light(1, cameraX, cameraY, cameraZ, 255, 255, 255);
textureMode(IMAGE_SPACE);
rectMode(CORNER);
@@ -536,12 +536,12 @@ public class PGraphics extends PImage implements PMethods, PConstants {
// reset lines
lineCount = 0;
line.reset();
if (line != null) line.reset(); // is this necessary?
pathCount = 0;
// reset triangles
triangleCount = 0;
triangle.reset();
if (triangle != null) triangle.reset(); // necessary?
// reset textures
texture_index = 0;
@@ -612,10 +612,10 @@ public class PGraphics extends PImage implements PMethods, PConstants {
// reset vertex, line and triangle information
// every shape is rendered at endShape();
vertex_count = 0;
line.reset();
if (line != null) line.reset(); // necessary?
lineCount = 0;
pathCount = 0;
triangle.reset();
if (triangle != null) triangle.reset(); // necessary?
triangleCount = 0;
}
textureImage = null;
@@ -1227,6 +1227,10 @@ public class PGraphics extends PImage implements PMethods, PConstants {
int tex = triangles[i][TEXTURE_INDEX];
int index = triangles[i][INDEX];
System.out.println("A " + a[X] + " " + a[Y] + " " + a[Z]);
System.out.println("B " + b[X] + " " + b[Y] + " " + b[Z]);
System.out.println("C " + c[X] + " " + c[Y] + " " + c[Z]);
triangle.reset();
if (tex > -1 && textures[tex] != null) {
@@ -4180,16 +4184,17 @@ public class PGraphics extends PImage implements PMethods, PConstants {
* Note that this setting gets nuked if resize() is called.
*/
public void cameraMode(int mode) {
if (cameraMode == PERSPECTIVE) {
if (mode == PERSPECTIVE) {
System.out.println("setting camera to perspective");
beginCamera();
resetMatrix();
perspective(cameraFOV, cameraAspect, cameraNearDist, cameraFarDist);
lookat(cameraEyeX, cameraEyeY, cameraEyeDist,
cameraEyeX, cameraEyeY, 0,
perspective(cameraFOV, cameraAspect, cameraNear, cameraFar);
lookat(cameraX, cameraY, cameraZ,
cameraX, cameraY, 0,
0, 1, 0);
endCamera();
} else if (cameraMode == ORTHOGRAPHIC) {
} else if (mode == ORTHOGRAPHIC) {
beginCamera();
resetMatrix();
ortho(0, width, 0, height, -10, 10);