About SpriteIIIuminator, how to set point light type?

cocos2d-x
1

hi guys: i want to know how to set point light type in spriteIIIumnator, can somebody know it ? thanks:)

2

You should ask @AndreasLoew, he is the author of this great tool.

3

What do you mean with point light type? Point light vs. directional light?
At the moment SpriteIlluminator supports only one point light, no directional light.

4

yes, when i use default camera is ok , but when i create a camera (such as createPerspective or createOrthographic), the light direction all change.e

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1cf3d08acb0556df.png740×484

5

the a2.png, i did not use camera, show ok , the a1.png, that i use perpective camera, show strange. now i think if image in perpective camera , the point light direction did not show right. maybe problem is here:

void LightEffect::prepareForRender(Sprite *sprite, Texture2D *normalmap)
{
auto gl = getGLProgramState();

gl->setUniformVec2("u_contentSize", sprite->getContentSize());

Point posRelToSprite = PointApplyAffineTransform(Point(_lightPos.x, _lightPos.y), sprite->getWorldToNodeAffineTransform());
gl->setUniformVec3("u_lightPos", Vec3(posRelToSprite.x, posRelToSprite.y, _lightPos.z));

gl->setUniformTexture("u_normals", normalmap);

SpriteFrame *frame = sprite->getSpriteFrame();
Size untrimmedSize = frame->getOriginalSize();
Size trimmedSize = frame->getRect().size;
Vec2 framePos = frame->getRect().origin;
Size texSize = frame->getTexture()->getContentSize();

// set sprite position in sheet
gl->setUniformVec2("u_spritePosInSheet", Vec2(framePos.x / texSize.width, framePos.y / texSize.height));
gl->setUniformVec2("u_spriteSizeRelToSheet", Vec2(untrimmedSize.width / texSize.width, untrimmedSize.height / texSize.height));
gl->setUniformInt("u_spriteRotated", frame->isRotated());

// set offset of trimmed sprite
Vec2 bottomLeft = frame->getOffset() + (untrimmedSize - trimmedSize) / 2;
Vec2 cornerOffset = frame->isRotated() ? Vec2(bottomLeft.y, bottomLeft.x)
                                       : Vec2(bottomLeft.x, untrimmedSize.height - trimmedSize.height - bottomLeft.y);
gl->setUniformVec2("u_spriteOffset", cornerOffset);

}

Point posRelToSprite = PointApplyAffineTransform(Point(_lightPos.x, _lightPos.y), sprite->getWorldToNodeAffineTransform());

6

Point posRelToSprite = PointApplyAffineTransform(Point(_lightPos.x, _lightPos.y), sprite->getWorldToNodeAffineTransform());

cause sprite is in a camera, so need camera with sprite together getWorldToNodeAffineTransform? because i do not about getWorldToNodeAffineTransform.