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Added shadow from omni light source. Added useShadow and excludeLight() method in Object3D. Fixed normals and tangents of skins from collada. Now can be used unlimited light sources with StandardMaterial.

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This commit is contained in:
Andrey Kopysov
2012-04-13 18:39:44 +06:00
parent 63261279a5
commit be2d825a46
35 changed files with 1613 additions and 271 deletions
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56
src/alternativa/engine3d/shadows/DirectionalLightShadow.as
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@@ -5,7 +5,6 @@
*
* It is desirable to notify that Covered Software was "Powered by AlternativaPlatform" with link to http://www.alternativaplatform.com/
* */
package alternativa.engine3d.shadows {
import alternativa.engine3d.alternativa3d;
@@ -60,8 +59,6 @@ package alternativa.engine3d.shadows {
/**
* Debug mode.
*/
public var debug:Boolean = false;
/**
* Degree of correcting offset of shadow map space. It need for getting rid of self-shadowing artifacts.
*/
@@ -164,6 +161,7 @@ package alternativa.engine3d.shadows {
* Enable/disable automatic calculation of shadow zone parameters on specified bound-box at shadowBoundBox property.
*/
public var calculateParametersByVolume:Boolean = false;
public var volume:BoundBox = null;
// TODO: implement special shader for display of shadowmap in debug (black-and-white).
@@ -217,7 +215,7 @@ package alternativa.engine3d.shadows {
this._mapSize = mapSize;
this._pcfOffset = pcfOffset;
this.type = _pcfOffset > 0 ? "S" : "s";
this.type = _pcfOffset > 0 ? "DS" : "ds";
vertexShadowProcedure = getVShader();
fragmentShadowProcedure = _pcfOffset > 0 ? getFShaderPCF() : getFShader();
@@ -381,12 +379,12 @@ package alternativa.engine3d.shadows {
// Draw
var debugSurface:Surface = debugPlane._surfaces[0];
debugSurface.material.collectDraws(camera, debugSurface, debugPlane.geometry, emptyLightVector, 0, -1);
debugSurface.material.collectDraws(camera, debugSurface, debugPlane.geometry, emptyLightVector, 0, false, -1);
// Form transformation matrix for debugPlane
debugPlane.transform.compose((frustumMinX + frustumMaxX) / 2, (frustumMinY + frustumMaxY) / 2, frustumMaxZ, 0, 0, 0, (frustumMaxX - frustumMinX), (frustumMaxY - frustumMinY), 1);
debugPlane.localToCameraTransform.combine(_light.localToCameraTransform, debugPlane.transform);
debugSurface.material.collectDraws(camera, debugSurface, debugPlane.geometry, emptyLightVector, 0, -1);
debugSurface.material.collectDraws(camera, debugSurface, debugPlane.geometry, emptyLightVector, 0, false, -1);
}
tempBounds.minX = frustumMinX;
@@ -567,7 +565,6 @@ package alternativa.engine3d.shadows {
fLinker.addProcedure(Procedure.compileFromArray([
"#v0=vDistance",
"#c0=cConstants",
"mov t0.xy, v0.zz",
"frc t0.y, v0.z",
"sub t0.x, v0.z, t0.y",
"mul t0.x, t0.x, c0.x",
@@ -711,6 +708,28 @@ package alternativa.engine3d.shadows {
//------------- ShadowMap Shader ----------
/**
* @private
*/
alternativa3d override function setup(drawUnit:DrawUnit, vertexLinker:Linker, fragmentLinker:Linker, surface:Surface):void {
// Устанавливаем матрицу перевода в шедоумапу
objectToShadowMapTransform.combine(cameraToShadowMapUVProjection, surface.object.localToCameraTransform);
drawUnit.setVertexConstantsFromTransform(vertexLinker.getVariableIndex("cUVProjection"), objectToShadowMapTransform);
// Устанавливаем шедоумапу
drawUnit.setTextureAt(fragmentLinker.getVariableIndex("sShadowMap"), shadowMap);
// TODO: сделать множитель более корректный. Возможно 65536 (разрешающая способность глубины буфера).
// Устанавливаем коеффициенты
drawUnit.setFragmentConstantsFromNumbers(fragmentLinker.getVariableIndex("cConstants"), -255*10000, -10000, biasMultiplier*255*10000, 1/16);
if (_pcfOffset > 0) {
var offset1:Number = _pcfOffset/_mapSize;
var offset2:Number = offset1/3;
drawUnit.setFragmentConstantsFromNumbers(fragmentLinker.getVariableIndex("cPCFOffsets"), -offset1, -offset2, offset2, offset1);
}
drawUnit.setFragmentConstantsFromNumbers(fragmentLinker.getVariableIndex("cDist"), 0.9999, 10000, 1);
}
private static function getVShader():Procedure {
var shader:Procedure = Procedure.compileFromArray([
"#v0=vSample",
@@ -737,6 +756,7 @@ package alternativa.engine3d.shadows {
// Clipping by distance.
shaderArr[line++] = "sub t0.y, c1.x, t0.z"; // maxDist - z
shaderArr[line++] = "mul t0.y, t0.y, c1.y"; // mul 10000
shaderArr[line++] = "sat t0.xy, t0.xy";
shaderArr[line++] = "mul t0.x, t0.x, t0.y";
shaderArr[line++] = "sub o0, c1.z, t0.x";
@@ -790,28 +810,6 @@ package alternativa.engine3d.shadows {
return Procedure.compileFromArray(shaderArr, "DirectionalShadowMapFragment");
}
/**
* @private
*/
alternativa3d override function setup(drawUnit:DrawUnit, vertexLinker:Linker, fragmentLinker:Linker, surface:Surface):void {
// Set transfer matrix to shadowmap.
objectToShadowMapTransform.combine(cameraToShadowMapUVProjection, surface.object.localToCameraTransform);
drawUnit.setVertexConstantsFromTransform(vertexLinker.getVariableIndex("cUVProjection"), objectToShadowMapTransform);
// Set shadowmap.
drawUnit.setTextureAt(fragmentLinker.getVariableIndex("sShadowMap"), shadowMap);
// TODO: set multiplier more correct. It is possible that 65536 (resolution of the buffer depth).
// Set coefficients.
drawUnit.setFragmentConstantsFromNumbers(fragmentLinker.getVariableIndex("cConstants"), -255*10000, -10000, biasMultiplier*255*10000, 1/16);
if (_pcfOffset > 0) {
var offset1:Number = _pcfOffset/_mapSize;
var offset2:Number = offset1/3;
drawUnit.setFragmentConstantsFromNumbers(fragmentLinker.getVariableIndex("cPCFOffsets"), -offset1, -offset2, offset2, offset1);
}
drawUnit.setFragmentConstantsFromNumbers(fragmentLinker.getVariableIndex("cDist"), 0.9999, 10000, 1);
}
/**
* Adds given object to list of objects, that cast shadow.
* @param object Added object.