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EMI: Update shader for actors and sprites [OpenGLS]

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Dries Harnie 2014-02-10 00:59:51 +01:00 • committed by Christian Krause
parent f12647cdca
commit 32a232fd3e
2 changed files with 28 additions and 27 deletions
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29
engines/grim/gfx_opengl_shaders.cpp
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@ -418,24 +418,22 @@ void GfxOpenGLS::startActorDraw(const Actor *actor) {
const Math::Quaternion &quat = actor->getRotationQuat();
const float scale = actor->getScale();
const float alpha = actor->getEffectiveAlpha();
Math::Matrix4 modelMatrix = quat.toMatrix();
if (g_grim->getGameType() == GType_MONKEY4) {
Math::Matrix4 viewMatrix = _currentQuat.toMatrix();
Math::Matrix4 extraMatrix;
// _mvpMatrix = _projMatrix * viewMatrix * modelMatrix;
const Math::Matrix4 &viewMatrix = _currentQuat.toMatrix();
Math::Matrix4 modelMatrix = actor->getFinalMatrix();
modelMatrix.transpose();
_actorProgram->setUniform("modelMatrix", modelMatrix);
_actorProgram->setUniform("projMatrix", _projMatrix);
_actorProgram->setUniform("viewMatrix", viewMatrix);
_actorProgram->setUniform("extraMatrix", extraMatrix);
_actorProgram->setUniform("projMatrix", _projMatrix);
_actorProgram->setUniform("cameraPos", _currentPos);
_actorProgram->setUniform("actorPos", pos);
_actorProgram->setUniform("isBillboard", GL_FALSE);
_actorProgram->setUniform1f("alpha", alpha);
} else {
Math::Matrix4 modelMatrix = quat.toMatrix();
bool hasZBuffer = g_grim->getCurrSet()->getCurrSetup()->_bkgndZBm;
Math::Matrix4 extraMatrix;
@ -446,8 +444,8 @@ void GfxOpenGLS::startActorDraw(const Actor *actor) {
_mvpMatrix.transpose();
_actorProgram->setUniform("modelMatrix", modelMatrix);
_actorProgram->setUniform("projMatrix", _projMatrix);
_actorProgram->setUniform("viewMatrix", _viewMatrix);
_actorProgram->setUniform("projMatrix", _projMatrix);
_actorProgram->setUniform("extraMatrix", extraMatrix);
_actorProgram->setUniform("mvpMatrix", _mvpMatrix);
_actorProgram->setUniform("tex", 0);
@ -641,9 +639,6 @@ void GfxOpenGLS::drawEMIModelFace(const EMIModel* model, const EMIMeshFace* face
mud->_shader->setUniform("textured", face->_hasTexture ? GL_TRUE : GL_FALSE);
mud->_shader->setUniform("lightsEnabled", _lightsEnabled);
Math::Matrix4 extraMatrix;
mud->_shader->setUniform("extraMatrix", extraMatrix);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, face->_indicesEBO);
glDrawElements(GL_TRIANGLES, 3 * face->_faceLength, GL_UNSIGNED_INT, 0);
@ -694,12 +689,18 @@ void GfxOpenGLS::drawSprite(const Sprite *sprite) {
glDisable(GL_DEPTH_TEST);
_spriteProgram->use();
const Math::Quaternion quat = Math::Quaternion::fromEuler(0, 0, _currentActor->getYaw());
const Math::Matrix4 &rotateMatrix = quat.toMatrix();
Math::Matrix4 extraMatrix;
extraMatrix.setPosition(sprite->_pos);
extraMatrix(0,0) *= sprite->_width;
extraMatrix(1,1) *= sprite->_height;
_spriteProgram->setUniform("extraMatrix", extraMatrix);
extraMatrix(0,0) = sprite->_width;
extraMatrix(1,1) = sprite->_height;
extraMatrix = extraMatrix * rotateMatrix;
extraMatrix.transpose();
_spriteProgram->setUniform("extraMatrix", extraMatrix);
_spriteProgram->setUniform("textured", GL_TRUE);
_spriteProgram->setUniform("isBillboard", GL_TRUE);
_spriteProgram->setUniform("lightsEnabled", false);

26
engines/grim/shaders/emi_actor.vertex
View file

@ -18,29 +18,29 @@ void main()
{
vec4 pos = vec4(position, 1.0);
if (isBillboard) {
vec4 scaled = extraMatrix * pos;
vec3 camToPos = normalize(actorPos - cameraPos);
vec3 up = vec3(0.0, 1.0, 0.0);
vec3 right = cross(camToPos, up);
pos.xyz = scaled.x * right + scaled.y * up;
pos = modelMatrix * pos;
vec4 offset = modelMatrix * vec4(0.0, 0.0, 0.0, 1.0);
offset -= vec4(cameraPos * offset.w, 0.0);
offset = viewMatrix * offset;
pos = extraMatrix * pos;
pos += vec4(offset.xyz * pos.w, 0.0);
} else {
pos = modelMatrix * extraMatrix * pos;
pos = modelMatrix * pos;
pos -= vec4(cameraPos * pos.w, 0.0);
pos = viewMatrix * pos;
}
pos /= pos.w;
pos = viewMatrix * pos;
pos += viewMatrix * vec4(actorPos - cameraPos, 0.0);
pos.z *= -1.0;
gl_Position = projMatrix * pos;
pos = projMatrix * pos;
if (isBillboard)
gl_Position.z = round(gl_Position.z);
pos.z = round(pos.z);
gl_Position = pos;
Color = color;
if (textured) {
Texcoord = texcoord;
if (isBillboard)
Texcoord.x = 1.0 - Texcoord.x;
} else {
Texcoord = vec2(0.0, 0.0);
}